Meteorological safety knowledge data map

1. Cool down

According to statistics, the month with the strongest cold air in China is 1 1. From June to February in 5438, the average temperature in most parts of the north was between–5℃ and–20℃, and frost sometimes appeared after the strong cold air in the south.

2. heavy snow

Strong cold air can often form large-scale snowfall or local blizzard. Snowfall has many benefits, especially for relieving winter drought and freezing farm diseases and insect pests. However, the snowy road is slippery and icy, which easily leads to civil aviation flight delays, road traffic accidents and lane congestion; In some areas, snow storms and road closures will also pose a threat to the safety of people and animals in pastoral areas.

3. freezing rain

Freezing rain is snow falling from the upper cold layer, sometimes it melts into rain in the middle layer, and becomes supercooled water with raindrops at a temperature below 0℃ in the lower cold layer. The supercooled water drops fall from the air, reach the ground and touch anything on the ground, and immediately freeze to form freezing rain. When freezing rain occurs, uneven ice shells appear on the ground and objects, which will have a great impact on traffic, electricity and communication, and will also cause damage to fruit trees.

4. Frost

Rime is the milky white ice crystal precipitation formed on objects by direct condensation of water vapor in the air at low temperature or direct freezing of supercooled water droplets. There are many foggy days in winter in China: Heilongjiang, Jilin, northern Xinjiang and northern Shaanxi. Rime is a kind of natural beauty that people generally appreciate, but sometimes it will become a natural disaster, which will seriously break wires and trees and affect traffic, power supply and communication.

5. Heavy rain

The formation process of rainstorm is quite complicated. Generally speaking, sufficient and continuous water vapor, strong and lasting upward movement of airflow and instability of atmospheric structure are the main physical conditions for heavy rain.

The favorable combination of various scales of weather system and underlying surface, especially topography, can produce heavy rain. The main weather systems that cause large-scale rainstorm in China are fronts, cyclones, shear lines, eddies, troughs, typhoons, easterly waves and intertropical convergence zone. In addition, thermal thunderstorms will also cause short-term and small-scale heavy rains in arid and semi-arid areas.

Extended data:

1. The dew in the morning is usually clear.

Why is it usually sunny when there is dew? This is because on a clear and cloudless night, the ground dissipates heat quickly, the field temperature drops rapidly, and the tolerance for water vapor in the air weakens, so that water vapor condenses on grass leaves and stones one after another. On a cloudy night, the ground seems to be covered with a big quilt, so the heat is not easy to dissipate, the temperature does not drop, and the water vapor stored in the cold is not easy to condense into dew.

There is always a rainbow after the rain.

In the air after a heavy rain, there are many small water droplets floating in the air. They are like prisms hanging in the air. When sunlight passes through them, it is first decomposed into seven bands: red, orange, yellow, green, cyan, blue and purple, and then reflected back. At this time, if someone stands between the "rain curtain" formed by the sun and raindrops, they will see colorful rainbows.

It usually snows in winter.

Winter is coming, why does it snow? This is because the temperature is low in winter, the ground temperature is below zero, and the temperature of high-altitude clouds is even lower. Water vapor in the cloud condenses directly into small ice crystals and snowflakes. When these snowflakes increase to a certain extent, the airflow can't hold, and falling from the clouds to the ground means snow. If there is a strong updraft, the air temperature will be higher, just like a big hand holding snowflakes. Snowflakes grow up in the clouds for a longer time and fall more.

See the lightning before you hear the thunder

The reason why you see lightning first and then hear thunder is because in the air, light travels fast and can reach the ground soon, while sound travels slowly in the air and will reach the earth in a short time. So you will hear lightning first, and then thunder. In fact, lightning and thunder appear at the same time.

The reason why the time to reach the ground is so different is that the speed of light is 3,000,000 kilometers per second, while sound can only travel 0.34 kilometers in the air for 65,438+0 seconds. The speed of sound is only one-ninth of the speed of light.

Lightning is long and short, loud and quiet. You can roughly judge the height from the clouds to the ground according to the time when the sound reaches the ground. It doesn't take much time for light to reach the ground, which can be considered as 0. How many seconds is the interval between seeing lightning and hearing thunder multiplied by 340 meters, which is the distance from lightning to you.

Lightning will reflect when it meets clouds or tall buildings, so it usually takes some time for lightning to disappear after lightning.

2. Small safety knowledge materials

Small knowledge of campus safety

Listen carefully, children. Safety knowledge has its roots. Always pay attention to words and deeds to reassure parents and teachers.

When crossing the road, keep your eyes clear and stay in the right column. When the vehicle approaches, give way early and raise your hand.

Don't run around the corner in case the other person knocks you down. Walk more carefully at night, don't touch the wall, don't hit a nail.

Dust, eye protection and dust need to be calm, gently and slowly wash your hands, and call a doctor if the situation is serious.

Little thing, play carefully, don't put it in your mouth. If you have a stomach problem, call the doctor immediately.

When you are hungry, keep your mouth shut, wash your hands and face before eating, and chew slowly into a habit, so as to be healthy.

Eating snacks, bad habits, regardless of occasion and time, distracted, others feel bored.

Electricity for lighting, don't play, don't touch wires, wires are dangerous everywhere, remember with common sense.

Don't watch TV dramas and cartoons when you are asleep in bed, or the TV will burn out.

1 19 In case of fire, remember the fire call and get out of danger quickly for help. Life safety is the most important thing.

If you don't know your family, don't be too casual when receiving. You go out to find your parents, and he takes the opportunity to do the case.

Don't stop the car. It is not safe to climb up and park. When an accident happens, he is injured, leaving scars and losing his life.

Lightning and thunder, natural phenomena are not false alarm, high walls and trees are not close, and conductors throw themselves down.

On rainy days and muddy roads, we should unite and help each other to talk about civilization, help each other tell the truth and go home safely.

Eat melons and fruits and wash them first. Mosquitoes bite flies and climb infectious diseases. It is an old saying that we should pay attention to hygiene and not get sick.

Playing games and staying away from metal will hurt people unintentionally. No matter how many reasons don't work, it will still be restless.

Don't drink and smoke, smoking and drinking is insane, and a handsome guy is disgraceful.

It's hot and sweaty, so don't wash your body with cold water. In severe cases, you can't get up in bed. In light cases, rheumatism also affects the upper body.

When you meet a gangster at 1 10, Fei Jing should remember his phone number clearly and respond tactfully. The gangster will be caught soon.

It is not safe to swim in private, so it is necessary to prevent dizziness and spasm. If you don't drink enough water from a river, you will go to the grave when you are young.

Be careful when connecting hot water. Turning the kettle upside down will burn your body, which will cost you money. If you miss it, you will feel sad and smooth the uneven skin.

When the river rises, it is better to be brave than to be brave. It's safe to walk around, even better after the rain.

Don't tease the dog when crossing the yard. Tell the adults to drive them away. Don't be smart. It is dangerous to be bitten by a dog.

Take a long walk on a hot day, remember not to drink raw water, it will make you dizzy and have a stomachache. Where can I find a doctor on the way?

Teenagers, don't play with fire. A single spark can start a prairie fire. Burn down houses and mountains, and you will be jailed if you are not careful.

It's cold in winter, so we should pay attention to keep warm, and the electrical appliances in the fire area should be careful. It's messy and everywhere.

The medicine vinegar bottle should be put away, and it must not be misplaced, because the elderly and children can't tell it apart, and eating it by mistake will kill people.

Playing table tennis, learning to shoot, expanding sports, parallel bars and climbing suspenders should all be done according to the rules.

No fighting, no swearing, civilized and polite, all-round development of morality, ambition, physique and beauty, and everyone strives to be a successor.

Don't listen to bad stories, which will affect your study and your youth. Don't read books and disks, you will be cheated if you don't analyze them.

I can't finish talking about safety, but I've always been cautious. Of course, occasional accidents are inevitable, so I take out insurance voluntarily.

Don't climb the tree, don't climb the tree, be careful that the height will not be stable, and no one knows where it hurts.

Live in the upper bunk, don't be careless, always remember that if you are not careful, the teachers and parents will be worried.

Syringe, with a needle tip, is easy to hurt your eyes when you play, and you don't just take medicine. Everyone should be a good doll.

Play the slide and swing, keep in mind the safety awareness, and be careful not to lose the rope and break it, which is not convenient for you to fall.

Burn gas with an electric stove, turn it off when it's finished, ventilate the room, and remember the lesson of blood.

Transformer, can not climb, high-voltage power supply is very dangerous, once it touches people's body, it will die.

Advocate insurance, publicize safety, keep safety knowledge in mind, and the gardener carefully and diligently waters it, and the fruit of safety is particularly sweet.

It is said that safety, road safety and safety work are important, teachers and students participate together, and there is nothing going on inside and outside the school.

Is that enough?

3. What are the common sense of thunderstorm weather safety?

1, it is essential to close the doors and windows during a thunderstorm. At the same time, it is necessary to unplug all the power in the house in time, and it is best not to play with mobile phones and computers. Of course, never watch TV, or you will get hurt if the TV breaks down.

2. Even if the power supply is unplugged, the concentrated wires are still charged. It's best not to get too close to the wires, and try to stand under the light bulb. Because if the thunder is particularly serious, the light bulb may break, and standing under the light bulb is particularly dangerous.

3, can't take a shower, because the hot water appliance is charged. At this time, bathing may conduct electricity, which is likely to threaten life safety. It is best to unplug the water heater, and it is best not to turn on the water heater in thunderstorm weather.

4. Keep away from windows, walls, etc. And it is best not to stand barefoot on the ground. One thing to note here is that it is best not to use iron wire as a clothesline to connect the windows, which is easy to introduce lightning.

In case there is a thunderstorm outside, never hide under the big tree. This is the minimum awareness of lightning protection. In addition, you can't stay in high-rise platforms, separate huts, sentry boxes, etc. However, if there is really no place to hide, just squat down with your legs together three meters away from the tree.

Extended data:

The average current of lightning is 30,000 amps, and the maximum current can reach 300,000 amps. The voltage of lightning is very high, about 1 billion to 1 billion volts. The power of medium-intensity thunderstorm can reach10 million watts, which is equivalent to the output power of a small nuclear power plant.

In the process of discharge, due to the sudden increase of temperature in the lightning channel, the air volume expands rapidly, resulting in shock waves and strong lightning. When the charged Lei Yun is close to the protrusions on the ground, a violent discharge will occur between them. There will be strong flash and explosion roar at the scene of lightning discharge. This is the lightning and thunder that people see and hear.

Sogou encyclopedia-lightning

4. Not much meteorological knowledge, urgent

Meteorology is a subject that takes the atmosphere as the research object, explains the characteristics of large-scale agricultural meteorological gases from both qualitative and quantitative aspects, and focuses on the weather situation and changing law of the atmosphere and weather forecast.

Meteorology is a branch of atmospheric science. The science that studies the physical phenomena and processes in the atmosphere and their changing laws.

The research field of meteorology is very wide, and the research methods are also very different. Meteorology is divided into many branches: atmospheric physics, meteorology, dynamic meteorology, climatology and so on.

With the development of production, the application of meteorology is increasingly extensive, and applied disciplines such as marine meteorology, aviation meteorology, agricultural meteorology, forest meteorology and pollution meteorology have appeared one after another. With the application of modern science and technology in the field of meteorology, new branches have emerged, such as radar meteorology, satellite meteorology, cosmic meteorology and so on.

Meteorology is an applied science closely related to production and life, involving many disciplines. Edit this research task 1 to observe and study various atmospheric phenomena, the interaction between the atmosphere and the underlying surface and the meteorological effects caused by human activities.

2. Explain these phenomena, functions and influences systematically and scientifically, and clarify their occurrence and evolution laws. 3. Analyze, diagnose and predict the past, present and future weather according to the known laws.

Climate serves the national economy and people's daily life. 4. The weather process and artificial climate environment explored and simulated according to theory and practice provide scientific basis for artificially influencing weather and climate.

Editing this history The first person to establish meteorology was the ancient Greek philosopher Aristotle. He described and explained the weather phenomena such as wind, clouds, rain, snow, thunder and hail for the first time in the world's earliest meteorological book, Dynamic Meteorology, and the monograph "Meteorological Exchange Theory".

Until 18- 19 century, due to the development of physics and chemistry and the continuous invention of measuring instruments such as pressure, temperature, humidity and wind, atmospheric science research entered the stage of quantitative analysis from simple description. 1820, Budrin, a German, drew the first surface weather map, which initiated modern weather analysis and forecasting methods.

1835, French Coriolis put forward the concept of wind deflection; 1857, Dutch C. H. D. Buys Ballot put forward the relationship between wind and air pressure, and their concepts became the basis of atmospheric dynamics and weather analysis. Around 1920, Pierre Knies and his son put forward a set of theories called "polar front theory" to explain the weather changes in mid-latitude areas.

It has been more than 70 years since 1920s was published, but it is still the main theoretical basis for today's weather forecast, and it also lays a theoretical foundation for analyzing and forecasting the weather in the next 1-2 days. 1930 s, the extensive use of radiosondes really began the atmospheric science research in three-dimensional space.

According to the high-altitude weather map drawn by a large number of detection data, the atmospheric long wave was found. 1939, Rossby proposed long-wave dynamics, and his theory also made great contributions to weather forecasting.

1From 1950s to 1960s, with the application of computer, weather radar, satellite and remote sensing technology, all kinds of atmospheric phenomena, from atmospheric circulation to raindrop formation, can be expressed in physical and chemical mathematical forms, thus making atmospheric science develop by leaps and bounds. The embryonic stage of this editorial development mainly refers to the long period before the middle of16th century. The characteristic of this period is that due to the needs of military meteorology and human life and production, some sporadic and local meteorological observations have appeared, some perceptual knowledge and experience have been accumulated, and some weather phenomena have been explained.

During this period, China has made many achievements in this field and is in the leading ranks in the world. As early as 3000 years ago, there were written records about wind, clouds, rain, snow, rainbows, clouds, tornadoes and thunderstorms. In Jia Shu of Yin Dynasty, people often ask about the weather in the next ten days (called "insolence") and record the actual situation for verification.

During the Spring and Autumn Period and the Warring States Period, according to the observation records of wind, clouds and phenology, 24 solar terms can be determined, which is of great significance to guiding the agricultural production season in the Yellow River basin and has been used until modern times. During the Qin and Han Dynasties, books on phenology also appeared, such as Lu's Chunqiu, Huainanzi and Book of Rites, which are the earliest phenological documents in the world.

Meteorological observation instrument is also the earliest invention of China. In the Western Han Dynasty (BC 104), three kinds of anemometers, Dai, Tong Feng and Xiang Bird, were popular, but in the Tang Dynasty, Xiang Feng Bird was used in fixed places, and the army used anemometers made of chicken feathers.

It was not until the 20th century that Europe recorded the use of migratory birds to measure the wind. In the Western Han Dynasty, the moisture absorption characteristics of feathers, charcoal and other things were also used to measure the air humidity.

In the Song Dynasty, a monk Zanning (A.D. 10 century) used a soil carbon hygrometer to forecast sunny and rainy days. The record of precipitation is also the earliest in China. According to the records of the later Han Dynasty, every county and state under its jurisdiction reported the rain to the imperial court every year from beginning of spring to beginning of autumn. Since then, all previous dynasties have attached great importance to the rain in various places.

Therefore, China has abundant rainfall, many floods and droughts, and the longest history. Due to the needs of production and life, human beings urgently need to predict the future weather changes, and have accumulated a lot of experience in long-term observation practice.

These experiences are expressed in short verse for easy memory and use. This is a weather proverb. The weather proverbs in China are extremely rich, except for some feudal superstitions, which are mostly the crystallization of the working people's experience in observing the sky.

Huang Zifa's Xiang Colleen Chan in Tang Dynasty, Tian Wu Jia Xing edited by Lou Yuanli at the end of Yuan Dynasty and the beginning of Ming Dynasty, and Zhan Hou by Xu Guangqi at the end of Ming Dynasty are all works summarizing people's experience in weather forecasting. In foreign countries, meteorology sprouted very early. In the 4th century BC, the great Greek philosopher Aristotle wrote a book called Meteorology (about 350 BC), which comprehensively discussed water, air and earthquakes, and made an appropriate explanation for atmospheric phenomena.

Nowadays, the foreign names of meteorology are all evolved from Aristotle's original name. In short, in the embryonic period of meteorology, China and Greece had contact. At this time, from the disciplinary nature, meteorology and astronomy are mixed together, which can be said to have the nature of astrology.

The initial stage of development includes1mid-6th century to1end of 9th century. At this time, due to Europe.

5. What are the common sense of thunderstorm weather safety?

1. Don't make a phone call or answer a phone call during a thunderstorm and lightning, but turn off your mobile phone, because the electromagnetic waves of telephone lines and mobile phones will lead to lightning injuries.

2. Don't turn on the TV, computer, VCD player, etc. Unplug all power plugs during thunderstorms and lightning to avoid personal injury and electrical damage. 3, don't stand under the light bulb, don't take a shower.

4. Try not to go out. If you have to go out, you'd better wear rubber shoes and a raincoat, which can keep out lightning. 5. Try not to open the door or open the window to prevent lightning from hitting the room directly.

6. Don't stick your head and hands out of the window when you encounter lightning in the car. 7. Stay away from trees during a thunderstorm. Try not to run in big strides. You can choose buildings to shelter from the rain, but don't choose cars to shelter from the rain.

8. Don't connect the wires for drying clothes and bedding to the doors and windows. 9. Don't wear wet clothes, hats, shoes, etc. Walking in a thunderstorm.

For sudden lightning, the height should be lowered immediately, and the feet should be close together to reduce the harm caused by the step voltage. 10, when lightning strikes, don't get close to all power facilities, such as high-voltage line transformers.

6. What are the safety tips on snowy days?

howdy

How to pay attention to safety when cycling in rainy and snowy weather?

When riding a bike in rain and snow, you should also pay attention to the following points:

When riding in the rain, don't bury your head to avoid the rain.

2. When riding a bike in rainy days, you'd better wear a raincoat and poncho instead of riding a bike with an umbrella in one hand and a handle in the other.

3. When riding a bicycle in snowy days, don't inflate the bicycle tires too much, which will increase the friction with the ground and make it difficult to slip.

4. When riding a bike in snowy days, keep a large distance from the vehicles and pedestrians in front.

5. When riding a bike in snowy days, you should choose a flat road with no ice and shallow snow. Don't slam on the brakes, don't turn sharply, and turn as wide as possible.

6. Rain and snow. The road is muddy and slippery, so you should pay more attention when riding, and be prepared for emergencies at any time. The riding speed is slower than normal weather.

Answer over

:) Have a nice day.

7. Safety tips handwritten newspaper

Traffic safety 1, walking safety: pedestrians must walk on the sidewalk, and walk on the right if there is no sidewalk; Crossing the road requires a crosswalk; The sidewalks controlled by effective communication signals shall comply with the signal regulations; When passing the sidewalk without traffic signal control, you should look left and right, pay attention to the traffic, and don't chase or run; If there is no crosswalk, you must go straight through, and vehicles are not allowed to cross suddenly when approaching; Anyone who takes the overpass or underground passage must take the overpass or underground passage; It is not allowed to climb over the guardrail and isolation belt on the roadside or in the middle of the road, and it is not allowed to pick up a car, chase a car, forcibly stop a car or hit a car with a parabolic object on the road.

2, riding a bicycle (electric car, motorcycle) safety: 16 years old, can not ride an electric car or motorcycle on the road; Riding without an umbrella; Don't give up riding a bike; Don't take people by bike; Don't take a "sick" car; Don't ride too fast; Do not grab the road with motor vehicles; Non-parallel cycle; Don't ride a bike in bad weather. 3, ride safety: stop to get on and off the bus, grab the handrail in the car, head, hands and other body parts can not extend out of the window, take care of things around you to prevent pickpocketing; Wear a seat belt when taking a high-speed car; Don't take an overloaded car.

8. Safety knowledge information

How to prevent burns? Scalding is a common accident in life.

In family life, the most common thing is to be scalded by hot water and hot oil. How to prevent burns? 1. When removing the kettle and hot oil pan from the fire, wear a cloth pad for gloves to prevent direct burns; The kettle and hot oil pan under the end should be placed where people can't easily touch them.

2. Parents should not play and disturb around when cooking and frying food, in case of being scalded by spilled hot oil; Older students should pay attention to cooking, and don't drop water into hot oil, or hot oil will splash when it meets water, which will burn people. Oil is flammable and will burn at high temperature. When cooking, you should prevent the oil temperature from getting too high and catching fire.

The oil in ten thousand pots is on fire, don't panic. Put the lid on the pot as soon as possible, and quickly remove the oil pan from the fire or put out the fire. Electric irons, electric heaters and other heating appliances at home will burn people, so be especially careful when using them, especially don't touch them casually.

How to use electricity safely? With the continuous improvement of living standards, there are more and more places to use electricity in life. Therefore, it is necessary for us to master the following basic common sense of safe electricity use: L. Know the main switch of power supply and learn to turn off the main power supply in an emergency.

2. Do not touch or test the inside of the power socket with your hands or conductive objects (such as wire, nails, pins and other metal products). 3. Don't touch the appliance with wet hands or wipe it with wet cloth.

4. Unplug the electrical appliance after use; Don't pull the wire when plugging and unplugging the power plug to prevent the insulation of the wire from being damaged and causing electric shock; The insulation layer of the wire is peeling off, so it is necessary to replace the wire in time or wrap it with insulating tape. 5. Find someone get an electric shock to try to turn off the power in time; Or use dry wooden sticks and other things to separate the electric shock victim from the charged electrical appliances, and don't save people directly by hand; Younger students should ask adults for help in this situation, and don't handle it by themselves to prevent electric shock.

6. Don't remove or install the power cord, socket and plug at will. Even if it is as simple as installing a light bulb, it should be turned off first and carried out under the guidance of parents.

How to use electrical appliances safely? Nowadays, TV sets, refrigerators, washing machines, electric irons, hair dryers, electric fans and other household appliances are increasingly entering the family. When using household appliances, besides using electricity safely, we should also pay attention to the following points: 1. Various household appliances have different uses and methods of use, and some of them are more complicated.

General household appliances should be studied and used under the guidance of parents, and dangerous appliances should not be used alone. 2. If there is smoke, sparks, burning smell, etc. , should immediately turn off the electrical appliances and stop using them.

3. Electric appliances such as hair dryers, rice cookers, electric irons and electric heaters will emit high heat when in use. Pay attention to stay away from flammable items such as paper and cotton cloth to prevent fire; At the same time, pay attention to avoid burns when using. 4. Avoid using electrical appliances in humid environment (such as toilet), and don't let electrical appliances get wet, which will not only damage electrical appliances, but also cause electric shock.

5. Fan blades of electric fans, dehydration cylinders of washing machines, etc. Rotate at high speed when working, and do not touch with hands or other objects to avoid injury. 6. In case of thunderstorm, please stop using the TV and unplug the outdoor antenna to prevent lightning strike.

7. Electrical appliances are easy to be damaged by moisture corrosion after being put on hold for a long time, so they need to be carefully checked before being reused. 8. When purchasing household appliances, you should choose qualified products with reliable quality.

How to pay attention to safety in indoor activities? There are many seemingly small things that deserve students' attention when they are doing indoor activities at home, otherwise, they are prone to danger. This mainly includes the following aspects: L. Collision avoidance.

At present, the living room space of most families is relatively small, and many household items such as furniture are placed, so don't chase and fight in the living room, do strenuous sports and games to prevent bumping and injury. 2. Anti-skid and anti-fall.

The living room floor is relatively smooth, so attention should be paid to prevent slipping and injury; When you need to climb up to clean and pick up things, please ask others to protect you and pay attention to prevent you from falling. 3. prevent falling.

If you live in a building, especially a high-rise building, don't lean out of the balcony or window to avoid the danger of falling. 4. Reverse extrusion.

Doors and windows of the living room, doors and drawers of furniture are easy to cover your hands when opening and closing, so be careful everywhere. 5. Fire prevention.

There are many flammable items in the room, such as wooden furniture, bedding curtains, books, etc., so pay attention to fire prevention. Don't play with fire casually in the room, let alone set off firecrackers in the room.

6. Prevent accidents and injuries. Sharp tools such as screwdrivers, knives and scissors, and stationery such as thumbtacks and pins should be properly kept after use. Don't put them on beds and chairs at will to prevent accidental injury to anyone.

What should I do if I get burned? In case of burns in life, the following measures can be taken: 1. Mild burns and slight redness can be washed repeatedly with cold water and coated with some cool oil. 2. If there are blisters on the burn, don't break them. You can rub alcohol around the blisters and wrap them with clean gauze.

3. Serious burns should be sent to the hospital in time for diagnosis and treatment. 4. If the burn area is large, you should take off your clothes, shoes and socks as soon as possible, but you can't tear them off by force. If necessary, you should cut off your clothes. Pay special attention to the cleanliness of the scalded area after scalding, and do not apply external drugs or substitutes at will to prevent infection, which will increase the difficulty of treatment in the hospital.

The correct way is to take off the patient's clothes and wrap them with clean towels or sheets. What should I do if I suffer trauma? Injured, in serious condition, need to be sent to hospital for treatment.

Omitted, it can be handled as follows: 1. If there is bleeding in the wound, it is necessary to clean the wound, apply disinfectant and anti-inflammatory drugs for external use, such as anti-inflammatory powder, mercuric chloride, band-aid, etc. In addition, pay attention to: keep the wound warm and dry; You can eat eggs, lean meat, beans, milk and other foods rich in protein. Take vitamin C properly or eat more fresh vegetables and fruits; Change dressing reasonably and keep it clean.

Doing so is conducive to the healing of the wound. 2. Muscles, joints, ligaments and other sprains should not be immediately * * * or hot compress, so as not to aggravate subcutaneous bleeding and swelling.

Stop activities immediately, so that the injured part can get enough rest, and cold compress or soak in cold water. Stay for 24 to 48 hours.

9. What are the safety knowledge of thunderstorm weather?

1. Don't stay on the high-rise platform in thunderstorm weather, and don't enter isolated shacks, sentry boxes, etc. In the open air.

2. Stay away from the exposed water pipes, gas pipes and other metal objects and power equipment in the building.

3. It is not advisable to hide under the big tree during a thunderstorm. If necessary, you must keep a distance of 3 meters from your torso, squat down and put your legs together.

4. If there are ants crawling on your head, neck and hands when thunder and lightning strike, and your hair stands on end, it means that lightning is coming. Get down on the ground quickly to reduce the risk of being struck by lightning, and take away the metal ornaments, hairpins and necklaces you wear.

5. If it is too late to leave tall objects due to outdoor thunderstorm, you should immediately find some dry insulation and put your feet on it. Never put your feet on the ground outside insulation, because water can conduct electricity.

6. When avoiding thunderstorm outdoors, be careful not to hold the ground with your hands. At the same time, put your hands on your knees, keep your chest close to your knees, and try to keep your head down, because your head is more vulnerable to lightning than other parts of your body.

7. When you hear thunder within a few seconds of seeing lightning outdoors, it means that you are in a dangerous environment near a thunderstorm. At this time, you should stop walking, put your feet together and squat down immediately. Don't get involved with people. It is best to use plastic rain gear and raincoat.

8. In thunderstorm weather, it is not advisable to open an umbrella or hold high badminton rackets, golf clubs and hoes in the wild. Not suitable for outdoor ball games. It is very dangerous to play golf and football in thunderstorm weather. It is not advisable to stay on the water surface or water edge; It is not advisable to wash clothes, fish, swim or play by the river.

9. In thunderstorm weather, it is not advisable to drive a motorcycle, ride a bicycle or run fast in the rain, because the greater the stride of the body, the greater the voltage, and the easier it is to hurt people.

10. If you see a high-voltage line that is broken by lightning outdoors, you should be vigilant at this time, because there is a step voltage near the breakpoint of the high-voltage line. People nearby must not run at this time, but should jump off the scene with their feet together.