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基准井 jīzhǔnjǐng
gen. keyhole
dril. index well; key borehole; key hole; stratigraphic test
oil criterion well; key well; stratigraphic well
tech. stratigraphical well
基准钻井
tech. key well
基准井: 5 phrases in 3 subjects
Geophysics1
Oil / petroleum2
Technology2

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