69午夜影院,国产在线伊人,h片黄片在线免费搜索观看,日本女人一级视频在线观看,天天玩天天草天天干夜夜操,91精品电影,亚洲人成中文字幕在线观看

Using the 3Ddeposit modeling system to guide underground prospecting according to the mineralization regularity and the complicated geological structure, and many blind and edge ore-bodies are found. The main adit + main-auxiliary shaft development method and the electronic signal control system are adopted in underground transportation to improve the transportation efficiency; implements the “four modernizations” of development, such as mining mechanization, production and management frontline, construction team   miniaturization, quality management standardization; adopts the mechanical equipments such as drilling trolley, prying trolley, driverless railcar to realize mechanization and automation of drilling ,charging, mining, transportation, filling and so on.


a.jpg

b.jpg








Inspect and apply the advanced equipments such as drilling trolley, prying trolley, driverless railcar to realize mechanization and automation of drilling, charging, mining, 

transportation, filling and other procedures.








c.jpg

The beneficiation puts the coarse crushing in the underground to avoid the surface noise 

and dust pollution, and realizes the environmental protection, energy saving and efficient 

utilization.

dd.jpg

The main adit + main-auxiliary shaft development method and the electronic signal control system are adopted in underground transportation to improve the transportation efficiency.









?