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扩钻
bridg.constr. reaming; enlarging
tech. counterboring
扩钻
: 162 phrases in 17 subjects
Automobiles2
Aviation1
Bridge construction5
Chemistry1
Dentistry1
Drilling18
Earth sciences4
Ecology1
Engineering geology10
Explosives and Explosive Ordnance Disposal4
General4
Geophysics1
Hydroelectric power stations4
Metallurgy1
Oil / petroleum20
Shipbuilding2
Technology83