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螺孔钻
tech. hole drill; tap borer; tap drill; tap-size drill
螺孔钻
: 53 phrases in 11 subjects
Automobiles2
Computer numerical control1
Construction2
Engineering geology7
Explosives and Explosive Ordnance Disposal2
General1
Hydroelectric power stations1
Ichthyology1
Oil / petroleum1
Shipbuilding4
Technology31