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钻眼
 钻眼
dril. bore out
earth.sc. drilling
oil bore hole
| 符号
 符号
met. character; code; designation; index
tech. symbol
 符号"U"
el. sec.sys. symbol "U"

to phrases
钻眼 zuānyǎn
dril. bore out
earth.sc. drilling
oil bore hole
textile drill hole
钻眼: 225 phrases in 15 subjects
Architecture1
Bridge construction1
Coal1
Construction1
Dentistry1
Drilling60
Engineering geology3
General4
Geophysics2
Mechanics7
Oil / petroleum48
Rail transport1
Technology92
Textile industry2
Tools1