mine block

Since the fact that the work condition under the shaft in coal mine is comparatively odiously, electric motor block rate is particularly tall.

由于煤矿井下的工作条件比较恶劣，电动机的故障率特别高。

With the construction case of shaft face pre-grouting in a gypsum mine in Henan, design and calculation, and construction technology of grouting for water block are stated, as well as the testing method for water block effect.

通过对河南某石膏矿立井工作面预注浆的施工，概述了注浆堵水的设计计算，施工工艺和方法的应用，以及堵水效果的检查和检验方法。

Computer method for draw control in block caving mine

崩落法放矿控制的计算机方法

Nobody checked how tightly the untested ear was covered, so I just pretended to block mine.

没人检查没被测试的耳朵是否盖严了.所以我假装盖严了耳道.

Yuli block of Xiaomaoshan Au-Pb-Zn mine lies to the west of Suzhou.

小茅山铜铅锌矿迂里矿段位于苏州西部.