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| опорная скважина | |||
| контрольная скважина | |||
| контрольный колодец | |||
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控制 井 : 28 phrases in 7 subjects |
| Drilling | 9 |
| General | 10 |
| Geology | 1 |
| Geophysics | 1 |
| Oil / petroleum | 3 |
| Oilfields | 3 |
| Technology | 1 |
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