My particular experience is largely in oil, and the search for oil has done more to improve deep drilling than any other mining activity.
我是专门搞石油的，寻找石油比其他任何采矿业对改进钻探作的贡献都要大。
And the search for oil has done more to improve deep drilling than any other mining activity.
寻找石油比其他任何采矿业对改进深孔钻作的贡献都要大。
As the mining face of a certain accumulational bauxite deposit is large, the property of the stope soil has great influences on the mining activity during rains.
堆积型铝土矿床开采工作面大，雨季采场土壤的性质对生产影响严重。
The event is ore earthquake of rock burst type related to coal mine exploitation and mining activity, the micro-earthquake swarms belong to occasional local stress releasing.
这次微震群属于冲击地压型矿震，与煤矿开采及回采工程活动有关，属于偶发的局部应力释放。
The event is ore earthquake of rock burst type related to coal mine exploitation and mining activity, the micro-earthquake swarms belong to occasional local stress releasing.
这次微震群属于冲击地压型矿震，与煤矿开采及回采工程活动有关，属于偶发的局部应力释放。
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