 |
| |||
| обвал стенок ствола скважины | |||
| hole bridging: 13 phrases in 8 subjects |
| Drilling | 1 |
| Makarov | 1 |
| Military | 1 |
| Mining | 1 |
| Oil / petroleum | 5 |
| Oil and gas technology | 1 |
| Oilfields | 2 |
| Technology | 1 |
|
| |||
| обвал стенок ствола скважины | |||
| hole bridging: 13 phrases in 8 subjects |
| Drilling | 1 |
| Makarov | 1 |
| Military | 1 |
| Mining | 1 |
| Oil / petroleum | 5 |
| Oil and gas technology | 1 |
| Oilfields | 2 |
| Technology | 1 |