torpedoing of a borehole
... torpedo ladle 混铁炉式盛铁桶 torpedoing of a borehole 钻井爆破 torpedoing 用爆破筒爆破 ...
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... 钻井机;凿井岩机：trepan 钻井爆破：borehole shooting 钻进方法：drilling technology ...
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炸药爆破钻井 explosive capsule drilling
·2,447,543篇论文数据，部分数据来源于NoteExpress
钻井工人和爆破手经常进行钻探及爆破活动。
Drillers and blasters often perform both drilling and blasting activities.
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本单元组包括拥有和经营自己生意的挖掘，分级，铺路，钻井和爆破承建商。
This unit group includes excavating, grading, paving, drilling and blasting contractors who own and operate their own business.
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