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斜孔掏槽
expl. inclined-hole cut
tech. inclined hole cut
斜孔掏槽在早期的掘进爆破中,最广泛采用的一种掏槽方法,即掏槽孔与工作面成一定的角度
expl. wedge cut; wedging cut; angled cut; oblique cut; wedge shot; wedging shot
斜孔掏槽: 4 phrases in 1 subject
Explosives and Explosive Ordnance Disposal4