A key device of the dump truck is its hydraulic cylinder, which is indispensable in its dumping process. The structure diagram of the cylinder is attached below. Since I don't know much about this kind of professional m.......

In cloudy weather or low visibility, friends driving a car must have used lights. The use of automotive lighting is closely linked to traffic safety. In our lives, there are not a few people who “wil.......

Chlorophyll is the most important pigment related to photosynthesis. Its chemical formula is C55H72O5N4Mg. It can be seen that chlorophyll contains elements such as Mg, N, C, H and O. Due to the lack of N elements in the plants, the synthesis of chlorophyll is blocke.......

I think everyone has not seen and should have heard of it. The initial D starring Jay Chou and the animated version of Japan sensationed the film and television industry. Young people are full of fantasies about AE86. Is it.......

Jennifer Lewis' lab, a Harvard-based materials scientist and bioengineering professor, has used 3D printing to make the proximal tubules of the human kidney, the most important structures that make up the basic units of the kidney and function almost as close as those in healthy kidney.......

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Recently, the state's major scientific research project "controlled single-atom (ion) and optical coupling system quantum state manipulation" to achieve a new type of magic light trap - magic light dipole, will be imprisoned in the micro light trap The coherent time of a sing.......

First of all, diesel is a light petroleum product, a mixture of complex hydrocarbons (about 10 to 22 carbons). Mainly divided into light diesel oil (boiling range of about 180 ~ 370 °C) and heavy diesel (boiling range of.......

The measurement accuracy of the transformer is high, the measurement wiring is complicated, and the fundamental frequency measurement of the power frequency is added. The environmental interference is very large. Th.......