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开发井 kāifājǐng
dril. exploitation well
oil development well
tech. extension well
油田开发井 kāifājǐng
dril. field development well
开发井: 27 phrases in 10 subjects
Company name1
Construction1
Drilling4
Earth sciences1
Economy1
Geology5
Mining1
Oil / petroleum11
Space1
Technology1

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