 |
| |||
| drilling thrust | |||
|
давление долото : 18 phrases in 5 subjects |
| Mining | 2 |
| Oil / petroleum | 7 |
| Oil and gas | 4 |
| Oil and gas technology | 1 |
| Oilfields | 4 |
|
| |||
| drilling thrust | |||
|
давление долото : 18 phrases in 5 subjects |
| Mining | 2 |
| Oil / petroleum | 7 |
| Oil and gas | 4 |
| Oil and gas technology | 1 |
| Oilfields | 4 |