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单井 dān jǐng
dril. single-well; single wellhead completion
eng.geol. single well; solitary well
oil individual well
单 井
: 148 phrases in 15 subjects
Drilling10
Earth sciences4
Economy3
Electronics1
Engineering geology5
Geophysics5
Hydroelectric power stations2
International trade1
Logistics1
Metallurgy1
Mining7
Nautical1
Navigation4
Oil / petroleum66
Technology37