Recently, the China Consumers Association (hereinafter referred to as "China Automobile Association") released an analysis of complaints received by the National Association of Consumers Association in 2017. Accordin…
Powerful and efficient Revo FR220E
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The reporter learned from the China University of Science and Technology that the Key Laboratory of Quantum Information of the Chinese Academy of Sciences, led by Academician Guo Guangcan, has made progress in the development of nano-electromechanical systems (NEMS…
1. The floatability of copper minerals
(1) Chalcopyrite CuFeS2, containing Cu 34.57%. P…
Every winter, with the sudden drop in temperature in most parts of the north, people's attention to heating is accelerating. At the same time, accompanied by heating, burning coal cause fog and haze, and "coal to electricity," "coal to gas…
According to data released by EV Sales, the US electric vehicle sales statistics website, global electric vehicle sales in 2017 exceeded 12.23 million units, up 58% year-on-year; global electric vehicle sales exceeded 1 million uni…
Separation of chemical beneficiation - flotation
Segregation-flotation is a combination of pyrochemical treatment and flotation. E.g. refractory segregation of copper oxide ores - flotation ore is crushed to a particl…
1. High-low temperature impact test box In high temperature test, if the temperature change does not reach the test temperature value, the electrical system can be checked and the faults can be eliminated one by one. If the temperature rises very slowly, it is necessary to look at the air c…