Researchers at the Shanghai Institute of Applied Physics, Chinese Academy of Sciences recently proposed a new mechanism based on the storage ring light source to generate high brightness, fully coherent radiation. The research shows that this operating mechanism can make full use…
According to data released by the Volkswagen Group's official website, the Volkswagen Group's global delivery volume reached 5.2 million units in the first half of this year, an increase of 0.8% compared with the same period last year. In June, Vol…
In June 2017, domestic SUV production was 738,500 units, an in…
1) Arrangement of nuggets - According to the thickness of the ore body, the long axis of the mine can be arranged in a vertical direction along the strike. Generally, when the thickness of the ore body is less than 15 meters, the mine room is arranged along the strike. When the ore and surr…
Whether the choice of mining methods is reasonable is directly related to the safety, economic benefits and resource utilization of mine production [1-2]. The choice of mining methods needs to consider various factors such as safety, technical feasibility and inves…
1 Overview of mines and ventilation systems
Inner Mongolia Jin Tao Co., Ltd. belongs ore mine built in 1958, the mining area of mining 5.1km2, using the shaft, blind shaft jointly developing ways of mining method for the scarps filling mining met…
Our country has entered a crucial period of moving from a big industrialized country to a powerful industrial country. However, weak industrial base has become the key bottleneck restricting the improvement of China's industrial core competitiveness and international industri…