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崩落岩石由开凿岩洞或爆破而从岩体上崩落下来的岩石块
expl. caving muck
崩落岩石
tech. shot rock
崩 落 岩石
: 11 phrases in 4 subjects
Explosives and Explosive Ordnance Disposal8
General1
Oil / petroleum1
Technology1