Today, China's construction sand is mainly artificial sand. It is made up of crusher, impact crush.......
The reporter learned from the National Motor Vehicle Maintenance Work Conference held recently that as of the end of last year, there were 440,000 motor vehicle maintenance households and nearly 3 million employees in the country, completing annual maintenance of 330 million vehicles.......
[ Instrument Network Instrument Development ] From June 23 to 25, the National Natural Science Foundation of China, a research project for major scientific research instruments (recommended by ministries and commissions), chaired by Zhang Shougang, a researcher at the Nationa.......
The use of grain dryers is conducive to coping with climate risks, saving manpower and financial resources, and improving food quality. It is another mechanization of food production following machine farming, machine intervention, and harvesting. Driven by the national food security strat.......
Langdon Stimson developed a new type of snorkel called an extra breathing tube that, as its name implies, allows you to breathe in water. It will allow you to spend twice as much time than using a standard ventilat.......
[ Instrument Network Instrument Development ] Recently, Anguang Institute Gao Xiaoming's research group has made new progress in improving the performance of off-axis integral cavity output spectroscopy instruments. The related research results are to achieve high-sensiti.......
It is understood that from 24 o'clock on October 12th, Shijiazhuang, Tangshan City completed the upgrade of automotive diesel engine quality to replace the National IV gas station-owned petrochemical gas station, after the relevant departments to verify the appropriate upgrade st.......
Some features of the cavitation phenomenon The throttles are widely used in hydraulic components and hydraulic systems, so cavitation phenomena are also widely present in various hydraulic systems. The cavitation phenomenon itself has some inherent characteristics. By studying these chara.......
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Gasoline Engine Test Results When idling emissions tests are performed, the operating conditions when using gasoline are basically the same. As can be seen from the test data, the emissions at idle are significantly higher than those from gasoline. Compared with curve gasoline without gas.......
[ Instrument Network Instrument Development ] Recently, the research project of “Series of Shallow Water Multi-beam Sounding and Sonar Key Technology Innovation and Application†led by Professor Li Haisen of Harbin Engineering University led the appraisal by the o.......
Hengli Town is a “professional town of mold making in China†and a “professional town of mold making in Guangdong Provinceâ€. It is a.......
The fiber analyzer method was established at the beginning of the 19th century. The main process is to use 1.25% acid and 1.25% hydrazine to continuously digest and use its undigested food residue as crude fiber. This method does not completely recover any chemical constituents or en.......