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钻孔钻头
tech. drill
钻孔钻头
: 120 phrases in 16 subjects
Architecture3
Automobiles6
Aviation2
Bridge construction1
Business1
Computer numerical control1
Construction2
Dentistry1
Electronics3
Engineering geology9
Explosives and Explosive Ordnance Disposal7
General2
Metallurgy1
Oil / petroleum5
Shipbuilding3
Technology73