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导眼
 导眼
dril. feel ahead
el. guide hole
| 钻头
 钻头
gen. drill
bridg.constr. borer
hydroel.st. aiguille; drill bit; bore bit
met. drilling bit; straight bit

to phrases
导眼
el. guide hole
oil pilot hole
导眼
dril. feel ahead
导眼: 26 phrases in 9 subjects
Aviation1
Drilling4
Electronics2
General1
Geophysics2
Oil / petroleum6
Space1
Technology6
Textile industry3