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to phrases
burn hole
expl.
中空孔
在平行空孔直线掏槽中,中空掏槽中不装药的炮孔,也叫导向孔。中空孔和装药炮孔之间的距离,取决于炮孔的直径和岩石性质。参见 pilot; hole
tech.
空炮眼
burn hole:
3 phrases
in 2 subjects
Explosives and Explosive Ordnance Disposal
2
Technology
1
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