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油井水 : 69 phrases in 10 subjects |
| Chemistry | 2 |
| Drilling | 3 |
| Earth sciences | 1 |
| Engineering geology | 2 |
| Metallurgy | 1 |
| Mining | 4 |
| Navigation | 1 |
| Oil / petroleum | 13 |
| Oil and gas technology | 1 |
| Technology | 41 |
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