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开井
eng.geol. open a well
mining. started in hole
tech. flowing a well
开 井
: 197 phrases in 23 subjects
Architecture1
Bridge construction1
Chemistry1
Coal1
Company name1
Construction2
Drilling23
Earth sciences1
Economy2
Engineering geology15
Explosives and Explosive Ordnance Disposal5
General5
Geology5
Geophysics4
Hydroelectric power stations4
Metallurgy1
Mining17
Navigation1
Oil / petroleum46
Rail transport1
Space1
Technology58
Water resources1

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