What are the meanings of A, L, R and P in CT films?

What do a, l, r and p mean in CT film? The position of cross-sectional observation point means that CT slice observation starts from the positions of anterior -P, left -L, right -R and posterior-A. ..

At the same time, there are also slices from the top -T and bottom-B.

What do you mean, p o p o l i?

I am mine.

PetroChina Company Limited

I am mine.

Propolis English ['pr? p？ l？ Beautiful? p？ l？ s]

Propolis;

[Example] The results show that the function of propolis nanorods

The raw material is superior to propolis extracted by ethanol.

The results show that the antibacterial effect of surface modified nano-titanium dioxide composite propolis is better than that of propolis alcohol extract.

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What do W: 1596 and L: 1868 on the bone age film mean? Hello, according to your description, your question is not clearly described.

Please know in Baidu that you must make a general statement when asking questions. Must be clear. Some people say that Baidu knows the question and doesn't answer it, which is why a group of low-quality questioners have created a group of low-quality respondents.

What does l e o p a r d mean, leopard [English] [? lep？ D][ America] [? lep？ R&D]

Leopard print; Jaguar, leopard, leopard;

Plural number: leopard

Confusable words: leopard leopard

The above results come from Kingsoft.

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What does u p e r al mean? Super seed.

A brand of olive oil in Spain

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What does this movie mean? Still a little. A small amount; Short. See Chen in the Southern Dynasties' Book of admonishing Master Renshan to cut the road: "If people are not surprised by the rubble; A piece of gold, everyone will rest. "

Basic explanation

1. [A roll of film]: film.

2.[ Movie]

3.x-rays.

Make a movie.

4. referring to movies in general.

5.[ phonograph records; Records: phonograph records.

6. [Pieces; Slice; Flake]: Flake refers to a flat and thin object.

Iron film.

7. [business card]: business card; famous post

Come on! Take my film and send him to the examination room. -"Continue to the third level"

8.[afew]: I still say one thing; A small amount; Short.

Citation interpretation

1. Say a little; A small amount; Short. Chen of the Southern Dynasties wrote a book to exhort Renshan Shenzhu: "If people are not surprised by the rubble; The movie is golden, and all the men are resting. " Song Yang Wanli's poem "Summer rain often walks on the dusk stream": "When the film is full of mountains, Rayna Sue suddenly turns green." Song Yang Wanli's "Visiting Zi Ren after Going to Yuan Dynasty" No.2: "Li Hua grows ten miles, but misses peach blossoms."

2. Generally refers to a flat and thin object.

The first time in A Dream of Red Mansions: "I saw Jia Lian sitting beside him angrily, and Pinger bent down to pick up a bowl of films." Lao She's Salesgirl Scene 3: "He said it only takes him seven minutes to pick a film."

3. refers to clothes.

"Jin Ping Mei Hua Ci" for the fourth time and the second time: "How did those two old films come out to meet people?"

4. refers to the business card.

The third time in "Officialdom in the Sky": "Fuck it!" I flew a film to his door and I finally arrived. " The fourteenth time in the current situation of strange things witnessed in the past twenty years: "I want to invite an audience and say that my family name is Chen and there is no film." Bing Xin's "To Qinglong Bridge": "Even the president's film can't be a ticket!"

5. Dialect. Refers to the soles of the feet. Yangko Opera "Zhou Zishan, a habitual bandit" Scene 3: "Old horse, arrest Yang and trample him to death!"

6. Films such as films and X-rays.

Lu Xun's letter to Yan Limin: "I don't know if you watch movies; I watched ... movies about Africa, the South and the Arctic. " Chen Rong's "Man to Middle Age" IV: "A patient with four beds and three beds, please ask Director Sun to watch the film again."

What is the meaning of L5D in CT film? CT can be regarded as a part much like brain, lung, liver and bone. With the development of scientific CT, hollow organs such as the heart can also be seen. Simply put, CT 1000 color scale is positive or negative, and each tissue has different color categories, or CT values. Bone, blood, fat and gas have different relatively fixed CT values. If the CT value is high, the membrane is white, for example, brain! CT brain parenchyma and blood value are different, and CT value is much higher than blood brain parenchyma! If cerebral hemorrhage in CT film turns the original brain parenchyma white! The following is the imported CT:

CT is a fully functional disease detection instrument and a computer technology called X-ray tomography. The CT of the working scheme is as follows: it is based on measuring the X-ray absorption and transmittance of different tissues of human body in different application situations, and then when the data obtained from the high-sensitivity measurement of the instrument are input into the computer, the computer will post-process the data, and can take an image of any part of the detected part or the three-dimensional cross section of the main body to find out the volume of tiny lesions. Because of the discovery of X-ray, medicine began to use it to detect human diseases. However, due to human differences, some organs that absorb X-rays are very small, so it is difficult to find them before X-rays and after the lesions of overlapping tissues. Therefore, scientists in the United States and Britain began to look for new things to make up for the lack of detecting human diseases through perspective technology. 1963, American physicist Cormac found that different X-ray transmittance in human tissues also borrowed some related formulas, which laid a theoretical foundation for the subsequent application of CT. From 65438 to 0967, according to the division of labor, the British electronics industry was unaware of the Cormac case study and began to develop a new technology. He first studied the recognition mode, enhanced the X-ray source generated in a simple scanning device, and later used CT to test the scanning measurement of human head. Later, he used this device to measure his body and got the same effect. 1971September, and the cooperation of Hen Feld and neuroradiologists. He designed this device. He made a mounting head in a hospital in the suburbs of London and began to check it. On October 4th, 65438/kloc-0, the hospital checked the first patient with it. In this case, the patient lies awake on his back after falling, and the X-ray tube installed above the patient and the patient under the counter rotate around the examination site at the same time, so that the amount of X-rays absorbed by various parts of the body is reflected on the counter, and then the images of various parts of the main body are displayed on the screen through the electronic processing computer. The test was very successful. 1In April, 972, the results of the annual meeting of hen Feld, which was first published in Britain, officially announced the birth of CT. This information has caused a great shock to the technical department, which is called the successful development of CT since Roentgen discovered the most important achievement of X-ray radiation diagnosis. Therefore, Henfield and Cormac won the medicine prize. Today, CT has been widely used in general drug therapy, and obtained 1979 Nobel physiological diagnosis.

What do you mean the film is transparent? Accurate exposure, accurate color reproduction, no fog, crystal clear scenery, as real and lovely as just washed.

For digital photography, transparent film mainly depends on lens quality, light application and exposure control.

It can be said that the landscape film is transparent, and it can also be said that the portrait film is transparent.