 |
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| вращение долота на забое без углубки (при подвешенном снаряде или вследствие самозаклинивания керна) | |||
| drilling free: 16 phrases in 8 subjects |
| Automated equipment | 1 |
| Construction | 1 |
| Drilling | 2 |
| Makarov | 1 |
| Oil / petroleum | 5 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |
| Oilfields | 3 |