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井眼 jǐng yǎn
desert. well pit
dril. drill holes; hole; bore; bore hole
oil well bore
tech. drill hole
UN, ecol. boreholes
UN, geol. borehole
井眼: 533 phrases in 9 subjects
Drilling173
Earth sciences6
Engineering geology2
Geology2
Geophysics95
Mechanics9
Mining8
Oil / petroleum200
Technology38