This paper describes the corrosion surroundings of Chinese underground collieries and the present protection state of coal mining equipment.

阐述了我国煤矿井下的腐蚀环境和采煤设备的防护现状。

youdao

It is difficult to weld the material in the production of coal mining equipment because the welding capability of this kind of material is no good.

而这种材料的焊接性能极差，给矿山设备的生产制造带来一定的困难。

youdao

Mr. Rieser, the maker of coal mining equipment, says his company is reacting to the slowdown by introducing machines for different segments of the market.

经营煤矿开采设备的里泽说，为了应对经济减速，他的公司正在推出针对不同细分市场的机械。

youdao

Yes, particularly coal mining equipment.

FORBES: Magazine Article

If a mining operation goes bust, Robertson keeps the coal and most of the equipment--and leases the mine to somebody else.

FORBES: Fuel's paradise