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光爆层光爆层是指周边炮孔与最外层主爆孔之间的一圈岩石层。光爆层的厚度就是周边孔〈光爆孔〉的最小抵抗线
expl. smooth blasting range
光爆层
: 2 phrases in 1 subject
Explosives and Explosive Ordnance Disposal2

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