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| 完井工艺; 完井方法 | |||
| 完井; 钻井完成 | |||
| заканчивание скважины: 42 phrases in 6 subjects |
| Caspian | 1 |
| Drilling | 20 |
| General | 9 |
| Oil / petroleum | 8 |
| Oil and gas technology | 2 |
| Technology | 2 |
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