Introduces the coal mining method and tunnel layout of auger mining,proves the feasibility of auger mining,expounds that auger mining is a kind of advanced coal mining method of sky-high safe degree.
英
美
释义
介绍了薄煤层螺旋钻开采技术的采煤方法以及巷道布置,论证了薄煤层螺旋钻开采技术的可行性,阐述了薄煤层螺旋钻开采技术是一种安全程度极高的先进采煤方法。
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