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solid rock
dril. 基岩
eng.geol. 原岩体; 坚固岩石
life.sc. 坚石〔岩〕; 原地岩
tech. 坚硬岩石; 坚岩; 坚石
solid-rock
hydroel.st. 基岩; 坚石
oil 坚固岩石
solid rock: 13 phrases in 2 subjects
Explosives and Explosive Ordnance Disposal1
Technology12