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eng.geol. 掏槽爆破
expl. 掏槽爆破在平硐、平巷掘进，天井上掘和竖井下掘中进行的首茬炮孔爆破，用来为到达掘进深度而提供膨胀空间
cut blasting: 15 phrases in 5 subjects
Electronics2
Explosives and Explosive Ordnance Disposal7
Oil / petroleum1
Rail transport1
Technology4

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