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十字钻头
bridg.constr. cross drill bit
eng.geol. star-pattern drilling bit
expl. boulder buster
hydroel.st. cross bit
tech. cross-mounted bit; cutaway mine bit; four-bladed bit; four-edged bit; square bit; star-pattern drilling bit (冲击钻用)
十字〔星形〕钻头
gen. cross bit
十字钻头: 32 phrases in 9 subjects
Bridge construction1
Drilling2
Electronics1
Engineering geology4
Explosives and Explosive Ordnance Disposal2
General1
Geology1
Oil / petroleum6
Technology14