 |
| |||
| средняя порода (категория буримости); категория буримости | |||
| medium formation: 4 phrases in 4 subjects |
| Medical | 1 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
|
| |||
| средняя порода (категория буримости); категория буримости | |||
| medium formation: 4 phrases in 4 subjects |
| Medical | 1 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |