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冲击钻进 chōngjī zuànjìn
bridg.constr. percussion drilling
dril. percussive drilling
el. chum drilling; jump drilling
eng.geol. cable boring; cable tool drilling; churn drilling; free-fall boring; hammer drilling; impact drilling; jar; plug drilling
tech. boring with line; cable drilling; percussion boring; percussive boring
冲击钻进钻头在一定装置作用下,利用钻具自重，在一定冲程高度内，周期性地对孔底进行冲击，以破碎岩石的钻进 chōngjī zuànjìn
expl. percussion drilling; percussion boring; percussive drilling
冲击波钻进
tech. shock wave drilling
冲击钻进作业 chōngjī zuànjìn
eng.geol. chuck drilling
冲击钻进: 96 phrases in 8 subjects
Construction1
Drilling1
Earth sciences2
Electronics2
Engineering geology32
Explosives and Explosive Ordnance Disposal4
Oil / petroleum1
Technology53

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