Three Gorges Dam Guide Words ""

The Three Gorges Dam Guide Words "Selected"

The Three Gorges Dam is located in the Xiling Gorge section of the Yangtze River in Yichang City, Hubei Province, China, and the Gezhouba Hydropower Station downstream forms a cascade power station. I have sorted it out for everyone, let’s take a look together:

Part 1: Guide words for the Three Gorges Dam

Dear travelers and friends:

Hello everyone! I am very happy to meet you and serve you under this fateful sky. First of all, let me introduce myself briefly. My surname is Lu. You can call me Xiao Lu. If you have any questions during the rest of the tour, please ask me and I will be happy to help you. I wish that our trip to the dam will always be accompanied by happiness and joy.

After nearly a hundred years of dreaming and half a century of debate, the Three Gorges Project has been ill-fated. But no matter what, a large-scale, majestic building in the world was miraculously born on the land under our feet. Now please come with me to visit the proof of this legend - the Three Gorges Dam.

Today we are going to visit three scenic spots: Tanzi Ridge, 185 Observation Deck, and the Interceptor Memorial Park. What we are seeing now is a 1:1250 miniature model of the Three Gorges Project, which reflects the landscape of the dam area after the Three Gorges Project was fully completed in XX. Let us first confirm where we are currently! Of course, it is Tanziling. The origin of its name is because the shape of the mountain resembles the jars used by Sichuan people to make kimchi upside down on the top of the mountain. It is 262.48 meters above sea level. , as long as everyone climbs to the top viewing platform of Tanziling, you can overlook the entire construction of the Three Gorges Dam area, enjoy the beautiful scenery of Huangniu Rock in Xiling Gorge and the distant view of Zigui New County. The blue water flow on the model represents the Yangtze River. How to distinguish the left bank and the right bank of the Yangtze River? Standing along the water, the direction to your right is the right bank, which is commonly known as Jiangnan. On the contrary, the side you just came to is the left bank of the Yangtze River. It is Jiangbei, facing away from the lower reaches of the Yangtze River in the direction of Yichang. Now you can go out of the model room and take a look at the huge Heavenly Book here - the Silver Version of the Heavenly Book. I can tell you without exaggeration that it is currently the largest book in China. Everyone saw that this book has been opened, and it contains an introduction to the Three Gorges Project. Now everyone can climb up to Tanziling to experience the full view of the dam in person.

Tourists, welcome to take our sightseeing bus again to the next attraction, the 185 Observation Platform. It is named 185 Observation Platform because its altitude is as high as 185 meters. It is at the same height as the top of the dam. Looking from the left hand direction, it is the front of the completed river dam. The closest thing to us is the construction site of the vertical ship lift. Looking to your right is the Three Gorges Reservoir, which has been filled to a water level of 165 meters. The normal water storage level of the dam reaches 175 meters, which is the height of 10 meters below our feet. Now when we get off the car, we can have an unobstructed close-up view of the back of the dam and the magnificent scenery of Gaoxia Chupinghu. Here you can look down at the flood discharge scene from a close distance, and the thunderous torrent is trampled under your feet. The barrage dam, the double-line five-level ship lock, the vertical ship lift, the left and right bank power station buildings, and the right bank underground power station power station building all together create this splendid Pearl of the Three Gorges. So standing in this area that has the largest number of projects in the world, the pride and pleasure in my heart are really beyond words!

Visitors, we are about to arrive at the last scenic spot, the Traffic Interception Memorial Park. If in Tanziling, the view of the Three Gorges Dam and the floodgates from the 185 Observation Deck is soul-stirring, singing about the great river going east; then going to the Three Gorges Damping Memorial Park is full of lyricism, and it is about historical witness. Now, please join me and reflect on this great history during the tour.

The Closing Memorial Park is a comprehensive park with the theme of showing the spectacular scene of the Closing Memorial Park. It was built and opened in the Three Gorges Dam area in 1995. It is the first water conservancy project theme park in China with the theme of the closure of the Three Gorges Project, integrating tours, science popularization, performances, leisure and other functions. The scenic spot you see covers an area of ??930,000 square meters and has an investment of more than 30 million yuan. The scenic area consists of four areas: the entrance area, the variety show viewing area, the ruins exhibition area and the recreation and leisure area. There are interception record walls, performing arts squares, water-friendly platforms, phantom imaging, large-scale machinery exhibition areas, climbing tetrahedrons, flat-throwing boats, etc. Composed of more than a dozen landscapes. The closure of the river is the most exciting scene in the construction of hydropower projects. The closure of the large river in 1997 and the closure of the open diversion channel in XX is a landmark event in the history of the construction of the Three Gorges Project. The comprehensive technical difficulty of the two river closures is rare in the world, but both achieved a series of technological innovations, making my country's river closure technology leap to the world's leading level. The closure memorial park formally follows the theme of the closure of the Yangtze River and reproduces this amazing feat of transforming nature. The Three Gorges River Interceptor Park embodies the theme spirit of the river interception culture of man conquering nature and integrating nature and man. In the landscape design of the entire park, the theme of water closure closely reflects the distinctive image characteristics of the Yangtze River, dams, and projects, creating a unique heritage landscape effect unique to water conservancy projects. The first-class engineering piles and objects on the original site have been preserved as much as possible, as you can see: the partition wall used to support the stacking of sand and gravel, more than 100 tetrahedrons left from the interception, and a 77-ton loading and unloading truck and a flat dump boat and other large construction machinery.

What you see now is our interception and reproduction screening room with the four characters "Interdiction and Reproduction" written in golden fonts. It uses modern high-tech phantom imaging technology to intuitively and vividly reproduce the interception of the Three Gorges of the Yangtze River to everyone. When you look at these, do you feel like you are in the hot construction scene? The completion and opening of the Three Gorges Damping Memorial Park seems to embody the cultural connotation of the Three Gorges Project and adds a beautiful scenery to the Three Gorges tour. As you see, it not only makes Our eyes were entertained, and more importantly it gave us a certain understanding of the history of the dam.

Tourist friends, after reading these historical testimonies of the interception and reproduction, you should have a lot of emotion and emotion in your heart! Then let us quietly end our day with this emotion and emotion. Let’s visit! Although I feel a lot of reluctance to say goodbye to everyone after this short acquaintance, there is no such thing as a feast that never ends, and I look forward to seeing you all again. I would like to thank you all for your cooperation and cooperation during the journey. If there is anything I did not do well in this process, I hope you will give me your valuable opinions so that I can learn and grow from you. Finally, I would like to send my most sincere blessings: I hope you will be able to work hard every day in the future! Chapter 2: Guide words for the Three Gorges Dam

Dear friends:

Hello everyone! Welcome! You are visiting the Three Gorges Dam! I will introduce it below so that everyone can have a more comprehensive understanding of the project.

What we are seeing now is a 1:1250 miniature model of the Three Gorges Project, which reflects the landscape of the dam area after the Three Gorges Project was fully completed in 2009. Let us first confirm where we are currently! You just passed the Three Gorges Project Special Highway, which is known as the "Road Museum", and Jiangxia Avenue, the main road in the dam area, passed the permanent ship lock, and then wound up the mountain to the Three Gorges Tanziling is the highest point above sea level within the 15.28 square kilometers of land acquisition in the dam area. Tanziling is named because its mountain shape resembles a Sichuanese kimchi jar turned upside down on the top of the mountain. It is 262.48 meters above sea level. As long as you climb to the top observation deck of Tanziling, you can overlook the construction of the Three Gorges Dam area and enjoy the full view. The beautiful scenery of Huangniu Rock in Xiling Gorge and the distant view of Zigui New County. Therefore, Tanziling serves as a permanent viewing platform and welcomes you at any time.

The blue water flow on the model represents the Yangtze River. How to distinguish the left bank and the right bank of the Yangtze River? Standing along the water, your right hand direction is the right bank, which is commonly known as Jiangnan. On the contrary, everyone who came just now This side is the left bank of the Yangtze River, that is, Jiangbei, and its back is toward Yichang, the lower reaches of the Yangtze River.

The main building of the magnificent Three Gorges Project consists of a barrage dam across the Yangtze River, a spillway dam section in the middle, power plants on the left and right banks, and navigation buildings. Its construction plan is: first-level development, one-time completion, staged water storage, and continuous resettlement.

The barrage starts from Platform 185 on the left bank and extends to Baiyanjian on the south bank of the Yangtze River. The total axis length is about 2309 meters. It is a concrete gravity dam (cast with concrete and relies on the dead weight of the dam body to resist The water pressure and other load effects in the reservoir area are different from another type of dam - arch dam). After the dam is completed, the top of the dam will form a road connecting Jiangnan and Jiangbei, with a width of 15 meters and a width of 124 meters at the bottom of the dam. If you look at the dam profile from the side, it will appear as a right-angled trapezoid. The elevation of the dam The elevation is the same as the 185 platform, which is 185 meters above sea level. In this way, the Yangtze River will be cut off in the middle section of Xiling Gorge. The more than 600 kilometers of waterway from the Three Gorges Dam to the upstream Chongqing City will form a natural river-type reservoir with a reservoir capacity of 39.3 billion cubic meters. The normal reservoir water level is It is 175 meters above sea level. Before the flood comes, the water level is lowered to 145 meters above sea level, so that the capacity of the flood control reservoir reaches 22.15 billion cubic meters.

The middle section of the spillway dam is 483 meters long, with 22 overflow surface holes (8 meters wide and 156 meters above sea level, mainly for flood discharge) and 23 deep overflow holes (7 meters × 9 meters, the hole bottom elevation is 90 meters, and its main function is to flush out sand.) It is mainly responsible for the task of releasing floods and removing sediment. The designed maximum flow rate of flood discharge is 116,000 cubic meters per second, which is equivalent to the flow rate of a thousand-year flood. Because the largest flood on the Yangtze River in history occurred in 1870, the maximum water flow at that time was 108,000 cubic meters/second. The wooden pillars of Huangling Temple left traces of water at that time, which provided precious hydrological materials for the design of our Three Gorges Project. I believe that the flood of 1998 left a deep impression on everyone. The Jingjiang levee was in complete emergency, Paizhou Bay burst, and Jiujiang New District was flooded. Direct economic losses were as high as 160 billion. The maximum flow of this flood was 68,000 cubic meters per second. Therefore, after the completion of the dam, the flood control standards of the Jingjiang River section will be greatly improved.

Located on both sides of the spillway dam section are the two rear-dam powerhouses on the left and right. The round holes on the model represent the number of hydropower units we will install in the future. We will install 14 hydropower units in the power plant on the left bank. The right bank power plant is equipped with 12 hydropower units, each with a single unit capacity of 700,000 kilowatts. It is equivalent to the power generation of a Danjiangkou hydropower station.

There are currently only 21 such large-capacity generating units in the world. Among them, the Itaipu Hydropower Station jointly built by Brazil and Paraguay, which currently ranks first in the world, has 18 units, and the Grand Coulee Hydropower Station in the United States, which currently ranks third in the world, has 18 units. 3 units. In the future, the Three Gorges Hydropower Station will have 26 hydropower units (each unit weighs 600 tons and exceeds the Eiffel Tower), with a total installed capacity of 18.2 million kilowatts and an annual power generation of 847 degrees, equivalent to 6.5 of the annual power generation of the Gezhouba Hydropower Station. times, which is equivalent to 10 times the annual power generation of Guangdong Daya Bay Nuclear Power Station. Compared with the Itaipu Hydropower Station, the largest in the world today, its Three Gorges Dam is the center and can transport to about 1,200 square kilometers, with the farthest east - Shanghai; the farthest west - Lanzhou The southernmost - Guangzhou; the northernmost - Tianjin, are continuously exported to central China, eastern China and eastern Sichuan, promoting hydropower development and economic development in these areas, and realizing the strategic pattern of "transmitting electricity from west to east". Water energy is a clean, renewable energy that does not consume natural resources and cause environmental pollution. The Three Gorges Project can save 40 million to 50 million tons of raw coal every year, reduce thermal power generation, and reduce environmental pollution, thus optimizing China's energy structure.

The third part of the project includes two permanent navigation buildings. One is the permanent ship lock that everyone just passed by (a double-line five-level ship lock), and the other is a single-line one-level vertical ship lift. . The permanent ship lock is artificially excavated and embedded in the granite mountain. It is called the double-line five-line continuous cascade ship lock. It will become the largest inland river ship lock in the world. The water level difference between the upstream and downstream is as high as 113 meters (the water level in the upstream is 175 meters above sea level. The water level in the downstream Gezhouba reservoir area is 62 meters above sea level. Such a high water level difference is equivalent to a thirty-storey skyscraper); the so-called "double lines" are the two grooves you see and the two future ones. One-way channel, one is for upbound ships and the other is for downbound ships. After the permanent ship lock is opened, ships can pass up and down here without interfering with each other and pass through the lock in an orderly manner; the so-called "five levels" are It is said that the permanent ship lock is divided into five levels, similar to the stairs that people often climb, then there are ten small lock chambers with two channels and five steps. The size of each small lock chamber is the same as that of the Gezhouba No. 2 Ship Lock in Yichang City. It is 280 meters long, 34 meters wide, and the minimum water depth is 5 meters. It takes at least 30 minutes for a ship to pass through the Gezhouba No. 2 Ship Lock once. Then, in the future, If you are interested in passing the permanent ship lock when swimming in the Three Gorges, it means that you have to pass through the five-level Gezhouba No. 2 ship lock continuously, which will take at least two and a half hours. At this point, some tourists may ask: "How do small and medium-sized passenger ships cross the dam? Does it also take such a long time?" Then I can reassure you that in order to enable ordinary passenger and cargo ships to cross the dam quickly, we are at 185 Another permanent navigation building is designed next to the platform - a single-line first-level vertical ship lift. If a ship passing through a permanent lock is like a person slowly climbing stairs, then a vertical ship lift is like people taking an elevator. In fact, the mechanical principle of the vertical ship lift is similar to that of the elevator that everyone often rides. The vertical ship lift has a huge ship-holding box (effective dimensions are 120 meters in length, 18 meters in width, and 3.5 meters in water depth). When the ship arrives, the gate will be opened to allow the ship and water to safely enter the ship-holding box. When the water depth reaches At 3.5 meters, the gate is closed, relying on the eight winches we installed above to provide power, and using 192 criss-crossing steel cables to raise or lower the ship, water, people, and ship-carrying box 113 meters together, which only takes 30-40 minutes. It can cross the dam, but the maximum load-bearing capacity of the vertical ship lift is 11,800 tons (exceeding the 7,800 tons of the largest similar facility at present - the Belgian sea dam hoist), so it can only lift a ship of 3,000 tons at a time Small ships below 3,000 tons, large ships over 3,000 tons, and 10,000-ton fleets still have to pass through the permanent locks. The vertical ship lift is not expected to be put into operation until 2009, so after the permanent ship lock is put into use in 2003, if you come to the Three Gorges, you can disembark at the Bashang Pier. After visiting the magnificent Three Gorges Project, you can take a car down, or You can continue to explore the beautiful scenery of the Three Gorges by boat.

In terms of shipping efficiency, on the river surface of the upstream reservoir, the voyage from Yichang to Chongqing can be saved by 5-6 hours, and in the future, the 10,000-ton fleet will be able to sail directly from Wuhan to Chongqing all year round. City, the Yangtze River will become a veritable "golden waterway." The Yangtze River crosses China from east to west, and its main stream extends to 18 provinces and cities. The water transportation conditions are very superior, and it is known as the "golden waterway." For a long time, although the country has carried out large-scale renovation and construction of waterways and ports, the development of shipping in the Yangtze River has still been It fails to meet the needs of national economic development, especially the 650-kilometer Sichuan River Channel from Yichang to Chongqing, which has large drops, fast currents, and dense shoals, where many accidents occur. Since ancient times, the saying "the road to Shu is difficult, it is difficult to reach the blue sky" includes the difficulty of sailing on the river. After the completion of the Three Gorges Project, the backwater reaches Ba County, Chongqing, the dangerous shoals are submerged, the channel is widened, and the water flow slows down. The channel can be improved to 650 kilometers, and the speed can be increased from the current 15 kilometers/hour to 30 kilometers/hour. A fleet of 10,000-ton ships can be built in one year. It can reach Chongqing directly from Wuhan 50% of the time, and transportation costs can be reduced by 35%-37%. Combined with port construction and ship modernization, the one-way annual navigation capacity of the launch will increase from the current 10 million tons to 50 million tons.

At the same time, due to the adjustment of the reservoir, the low water volume below Yichang has increased from the current about 3,000 cubic meters/second to more than 5,000 cubic meters/second, thereby increasing the low water navigation depth in the middle reaches of the Jingjiang River, which is beneficial to channel maintenance and ship operations. In this sense, the construction of the Three Gorges Project will promote the further development of the Yangtze River shipping industry, improve the safety of transportation, strengthen the connection between the three major economic zones of Southwest, Central China, and East China, and promote the development of the Yangtze River Economic Belt along the river.

Looking at the main buildings of the Three Gorges Project, it can be seen that the Three Gorges Project on the Yangtze River has three significant comprehensive benefits: flood control, power generation, and shipping. Other benefits include South-to-North Water Diversion, developmental immigration, aquaculture, tourism, environmental protection, farmland irrigation, etc. The Three Gorges Reservoir area has a significant regulating effect on the climate of surrounding areas. Winter temperatures are beneficial to the growth of citrus in the reservoir area, and summer cooling is beneficial to alleviating temperatures in Chongqing, Wanxian and other places. The construction of the Three Gorges Project will ensure the water supply for towns in the middle and lower reaches of the Yangtze River and the water and electricity for farmland drainage and irrigation, and provide sufficient water sources for the cross-basin South-to-North Water Diversion. Through the development of reservoir aquaculture and tourism, the economic development of the Three Gorges Reservoir area will be effectively promoted.

Since the Three Gorges Project was proposed by Dr. Sun Yat-sen in the "National Founding Plan" in 1919, it has undergone repeated inspections and demonstrations by Chinese and foreign experts for seventy or eighty years. Its feasibility plan was presented at the Fifth Session of the Seventh Boundary of the National People's Congress in 1992. passed. The dam site was finally selected in Sandouping Town, Yichang, in the middle section of the Xiling Gorge of the Three Gorges of the Yangtze River. It is 38 kilometers away from the downstream counter-regulating reservoir Gezhouba Waterway. This is inseparable from its unique location and terrain conditions. The wide valley of the Miao River is conducive to accommodating many buildings. The foundation stone of the dam site is hard granite, which is recognized worldwide as the best location structure for building dams. , there is a long and narrow sandbank in the center of the river - Zhongbao Island, which divides the river into two, with the main river on one side and the back river on the other, providing conditions for phased construction and phased diversion of the dam.

The total construction period of the Three Gorges Project was 17 years, and we divided it into three phases from 1993 to 2009.

1993 to 1997 was the construction period of the first phase of the Three Gorges Project. We excavated Zhongbao Island and built a vertical cofferdam on it, and at the same time built a horizontal cofferdam on the upstream and downstream sides. In this way, the former Houhe River section was blocked into a square-shaped foundation pit, and the A 3,726-meter-wide channel with a width of 350 meters was artificially built within the first phase of the cofferdam foundation pit. This is the famous diversion channel that is now responsible for navigation. At the same time, temporary ship locks and vertical ship generators were built on the waterless river bed on the left bank, as well as foundation excavation work for other water parts. During the construction of the first phase of the project, the navigation of the Yangtze River in this section was still undertaken by the main river channel of the General. The damming of the river on November 8, 1997 marked the end of the first phase of the project and the beginning of the second phase. At that time, national leaders came to watch the interception ceremony in person, and CCTV broadcast the entire process live. This interception of the Yangtze River caused nearly two-thirds of the main river channel of the Yangtze River to form a mouth-shaped second-stage cofferdam foundation pit. Today we all From the roof of Tanziling, you can overlook the construction scene of the upper and lower cofferdams and foundation pits. Between 1997 and 2003, we will drain the water from the foundation pit, concrete two-thirds of the barrage, install floodgates, install a left bank generator set, and build a permanent lock and vertical ship lift. During the construction of the second phase of the project, the diversion open channel will ensure the navigation of the Yangtze River. However, since the diversion open channel is only 350 meters wide, whenever the summer flood season comes, (large or small water flow will affect the navigation of the diversion open channel and temporary ship locks, The turbulent water flow in the open channel endangers the safety of shipping, so we built a temporary ship lock near the left bank of the Yangtze River (it will end its historical mission after 2003 and be changed to a sand sluice gate) to cooperate with the diversion open channel during the flood season. In 2003, the second phase of the project was completed. After the water was stored to an altitude of 135 meters, the floodgates began to discharge water, and the first batch of units began to generate electricity. This was also an important symbol of the completion of the second phase of the project. We will install two units in 2003, and then add four units every year, which is equivalent to adding one Gezhouba Power Station every year. The permanent ship lock, which has a very large amount of work, will be officially opened to navigation in 2003, and fleets of 10,000 tons can slowly sail into the lock. From 2003 to 2009, it is the third phase of the Three Gorges Project. We will enclose the currently navigable diversion channel with a cofferdam again to form the third phase cofferdam foundation pit. The focus of the project will shift to one-third of the guide channel on the right bank of the Yangtze River. When the open channel reaches the river surface, we will pour the remaining one-third of the dam section and complete the construction of the powerhouse behind the dam on the right bank and the installation of the units. Then seven years later, when everyone comes to visit the dam area again, the dam will be as majestic as shown on the model. The investment required for the Three Gorges Project is statically (calculated based on prices at the end of May 1993) RMB 90.09 billion, including RMB 50.09 billion for the hub project and RMB 40 billion for the reservoir resettlement project, but taking into account prices, interest, etc. Factors, the dynamic investment required is 203.9 billion yuan. In the 11th year of the construction of the Three Gorges Project (2003), there was power generation income after the first batch of units generated electricity. By 2005, the power generation income of that year plus the profit income of the Three Gorges Project Construction Fund and Gezhouba Power Plant reached a balance with the dynamic investment demand of the year, that is, 2005 was In the fund balancing year, the Three Gorges Project experienced a fund surplus in 2006 and began to repay the principal and interest of the loan. In 2010, the entire principal and interest of the loan can be repaid.

Although the dynamic investment of the Three Gorges Project reaches more than 200 billion, as long as the Three Gorges Power Station exerts its huge power generation efficiency, we can recover the cost within 5 years. Then it can be said that the Three Gorges Project not only brings us light, but also Wealth has been created and the economic benefits are very significant. The construction of the Three Gorges Project also has your contribution, because part of the electricity bill you pay will be used as a special fund for the construction of the Three Gorges Project. It can be said that as soon as the lights in your house turn on, you have contributed your best to the construction of the Three Gorges Project.

In the downstream direction of the Three Gorges Dam, there is a beautifully designed bridge - the Xiling Yangtze River Bridge. Its shape is similar to the San Francisco Golden Gate Bridge on the west coast of the United States. The Xiling Yangtze River Bridge is a fourth-generation suspension bridge with four lanes on the bridge deck. It was completed and opened to traffic on August 10, 1996. It is characterized by the fact that there are no bridge girders, and the weight is borne by two tower columns and two steel cables. Its load capacity is 290 tons, the total length of the bridge is 1118.66 meters, and the span ranks third in China at 900 meters (the top two are respectively (Tsing Ma Cross-sea Bridge in Hong Kong and Jiangyin Yangtze River Bridge in Jiangsu). The elevation of the towers at both ends of the bridge is 187.5 meters, which is only 2.5 meters higher than the future dam. If you are interested, you can go back Cross the Xiling Yangtze River Bridge and experience how high the future dam will be. Maybe you have noticed that the color of this bridge is orange-red, so why do we set the color of the bridge as orange-red? There are many reasons. 1. The orange-red color is bright and eye-catching, which is good for navigation; 2. The orange-red color represents wealth and good luck. 3. Yichang is a famous citrus hometown in the country.

The green belt in the center of the river under the bridge is an artificially constructed dike with a length of 3,750 meters. It divides the river into two. Now you can see the scene of "half river and half red". In the future, one side of the breakwater will be a moving water area, where you can watch thunderous thunder and turbulent waves crashing against the shore when the water head is high, and the other side will be a still water area, where boats will be kept safe, stable and quiet. This is the so-called "moving water to generate electricity and still water to navigate."

On the model, you can also see another bridge - the Qinjiatuo Bridge, which is the main passage in and out of the second phase construction site. A large amount of sand and gravel, mechanical and electrical equipment, personnel and materials are continuously transported through it. A mouth-shaped cofferdam foundation pit. It is the bridge with the largest load-bearing capacity in Asia, with a maximum load-bearing capacity of 690 tons. (The weight of each unit is about 600 tons)

In the future, the Three Gorges Dam area will become a beautiful tourist resort with complete leisure and entertainment facilities. At that time, everyone is welcome to visit the Three Gorges Dam area again, and I look forward to traveling with you again! Now please go to the Tanziling Observation Deck to enjoy the panoramic view of the dam area. If you have any questions, please feel free to ask and I will try my best to answer them.

Finally, thank you all for your attention to the Three Gorges Project! Thank you for your wishes for the Three Gorges Project! ;