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预钻
 预钻
gen. subdrill
bridg.constr. preboring
|
 式
gen. a system
met. type
sport. style; formula
wushu. form
 A式
scub. position A
| 旁 压仪
 旁压仪
bridg.constr. pressure metre

to phrases
预钻
gen. subdrill
bridg.constr. preboring
eng.geol. pre-bore; predrilling
预钻
: 49 phrases in 8 subjects
Drilling13
Engineering geology10
Explosives and Explosive Ordnance Disposal1
General2
Metallurgy3
Oil / petroleum3
Rail transport2
Technology15