... coal resources mining 煤炭资源开采 coal-mining methods 采煤方法 coal pillar mining 带煤柱开采 ...
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We have raised the coal output by using better mining methods.
我们利用更好的采煤法增加了煤炭产量。
It expounds various mining methods and steps, including the bench demarcated, plan mining bench top and bottom floor, the coal and overburden amount of plan mining, and coal quality indicators.
阐述编制露天矿的各种开采计划的方法和步骤，以及其台阶划分、计划台阶顶底板的控制、编制剥离量和采矿量及其煤质指标等；
The science methods of coal quality management in Yangquan Mining Group Corporation Ltd. were introduced in this paper.
介绍了阳泉煤业(集团)有限责任公司煤质科学管理的方法。
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