具突出危险性的厚煤层采用综采放顶煤开采法对消突是有积极作用的。
Finally, the paper considers that the fully mechanized coal caving mining is helpful to control outburst hazard.
当我漫步于一道小溪发源处的草地之上，那太阳，终于在一个凄苦的寒天之后、暮夕之前，突于天际骤放澄明。
I was walking in a meadow, the source of a small brook, when the sun, just before setting, after a cold gray day, reached a clear stratum in the horizon.
高压水射流扩孔为提高低透气性煤层的瓦斯抽放效果和扩大防突措施的效果提供了一个可行的技术途径。
The hole enlargement by high - pressure water jet provided a feasible technical way for raising gas drainage effect from coal seam in low permeability and improving the effect of outburst pre...
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