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| 钻井工艺学 | |||
| 钻井工艺技术 | |||
| 钻探工艺; 钻井技术; 钻进工艺; 凿岩工艺 | |||
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drilling technology : 31 phrases in 5 subjects |
| Drilling | 14 |
| Earth sciences | 2 |
| Engineering geology | 2 |
| Oil / petroleum | 4 |
| Technology | 9 |
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