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| travaux des sondages | |||
| travaux de perforation | |||
| travaux de sondage | |||
| opérations de forage; travaux de forage | |||
| буровые работы: 35 phrases in 8 subjects |
| Construction | 3 |
| Geology | 4 |
| Hydraulic engineering | 2 |
| Mining | 8 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 11 |
| Technology | 5 |
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