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| 生产油井 | |||
| 开采钻孔 | |||
| 生产井 | |||
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field well : 29 phrases in 9 subjects |
| Agriculture | 5 |
| Drilling | 2 |
| Earth sciences | 1 |
| Electronics | 6 |
| Engineering geology | 4 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Geology | 1 |
| Oil / petroleum | 3 |
| Technology | 6 |
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