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| уплотнять; пломбирование скважины; ликвидация скважин | |||
| закрытие скважины | |||
| 封孔: 32 phrases in 7 subjects |
| Drilling | 3 |
| Electronics | 7 |
| General | 10 |
| Geology | 5 |
| Military | 1 |
| Oilfields | 1 |
| Technology | 5 |
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