By analyzing the geological situation of Jixian Coal Mine, the inverted-led withdrawing way of fully mechanized mining hydraulic supports is applied.
通过对集贤煤矿地质概况进行分析，决定采用倒牵式回撤综采液压支架。
By analyzing the geological situation of Jixian Coal Mine, the inverted-led withdrawing way of fully mechanized mining hydraulic supports is applied.
通过对集贤煤矿地质概况进行分析，决定采用倒牵式回撤综采液压支架。
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