| |||
| посадка колонны на забой | |||
| посадка колонны на забое | |||
|
string slacking-off : 5 phrases in 4 subjects |
| Oil / petroleum | 2 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Technology | 1 |
| |||
| посадка колонны на забой | |||
| посадка колонны на забое | |||
|
string slacking-off : 5 phrases in 4 subjects |
| Oil / petroleum | 2 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Technology | 1 |