Fracking liquid nitrogen vehicles are assisted with liquid nitrogen during fracturing in the oil field, so that the formation with insufficient pressure will release the fracturing fluid as soon as possibl.......

1. What kind of pressure should be measured by the pressure transmitter? Firstly, determine the maximum value of the measured pressure in the system. Generally, it is necessary to select a transmitter with a pressure range that is about 1.5 times larger than the maximum value. This is main.......

With the upgrading of the consumer market, the concept of great health is gradually being accepted by the society, and the demand for health products is also increasing. And the homologous products such as yam, chrysanthemum, dandelion, etc. have also begun to receive market attention. Recently.......

There are already more than 300 Japanese parts manufacturers that have begun a gold rush in China in various forms such as joint ventures or wholly-owned ventures. These parts and components manufacturers' products account for approximately 5%-10% of China's auto parts market, and.......

A few days ago, media reported that physicists at Los Alamos National Laboratory and Queen's University in the United States designed a zero-friction engine that uses the advantages of a quantum shortcut to do its work.

Engines, especially internal combus.......

Recently, the 2012 China's industry leader in the selection of industry leaders was held in Beijing. Weichai Power Co., Ltd. and Shaanxi Fast Gear Co., Ltd., both of which are listed in the list of China's industry leaders. Among them, Weicha.......

【China Deep Hole Rig Tr.......

Unspoken rules are everywhere, not limited to officialdom, and the lighting and lighting industry is also full of unspoken rules. If you want to mix in this industry, the unspoken rules are compulsory courses, otherwise you have to follow suit.
Xiaobian summed up and found that there .......

The ability of independent in.......