 |
| |||
| top hole; roof hole | |||
| верхняя скважина: 48 phrases in 11 subjects |
| Drilling | 8 |
| Military | 1 |
| Mining | 3 |
| Oil / petroleum | 12 |
| Oil and gas | 8 |
| Oil and gas technology | 6 |
| Oilfields | 1 |
| Production | 1 |
| Sakhalin | 5 |
| Technology | 1 |
| Water resources | 2 |
|
| |||
| top hole; roof hole | |||
| верхняя скважина: 48 phrases in 11 subjects |
| Drilling | 8 |
| Military | 1 |
| Mining | 3 |
| Oil / petroleum | 12 |
| Oil and gas | 8 |
| Oil and gas technology | 6 |
| Oilfields | 1 |
| Production | 1 |
| Sakhalin | 5 |
| Technology | 1 |
| Water resources | 2 |