"Innately a fairy hole, infinite scenery in the dangerous peak", Lushan immortal cave natural, unlimited scenery above the dangerous peaks. The use of Chairman Mao’s seven-piece muster to describe the three-generation relationship between FAW's liberation of Xichai and Sh ...read more...
[China Instrument Network Instrument Company] On August 4th, Xintian Technology released a morning announcement that the company's NB-IoT narrowband Internet of Things smart meter was officially released. According to the company, NB-IoT narrow-band Internet of Things smart meter is a new gene ...read more...
There are a variety of current cars, and the principles of engines and gearboxes are varied. However, many technologies are based on the old technology of several decades ago. Car manufacturers now have very little improvement on engines and gearboxes, and the powertrain is not incapable of this a ...read more...
The amount of ball loading has a certain impact on the grinding efficiency. The ball has less grinding efficiency; the ball loading is too much, and the inner ball is easy to interfere during operation, which destroys the normal circulation of the ball and reduces the grinding efficiency. Practice ...read more...
According to the grinding medium, the shape of the casing and the method of discharging, it is divided into a ball mill , a rod mill and a mediumless mill. Ball mills are further divided into: short cylindrical, tubular, conical overflow drainage and lattice discharge. The rod mill is further divi ...read more...
Meishan iron ore has been used Sublevel caving mining method, after decades mined different intensity, generated at the surface of different sizes and different periods subsidence area and moving area [1], and as the second phase and two During the extension project, the mining area will gradually i ...read more...
Physical sorting is the earliest method used by humans to begin processing minerals for the sake of life and production. Physical sorting, because of one or two physical properties of materials, can be divided into several different sorting methods, mainly the following: (1) Gravity beneficiation ...read more...