 |
| |||
| pole | |||
| штанга ударного бурения: 12 phrases in 6 subjects |
| Construction | 1 |
| Drilling | 1 |
| Geology | 3 |
| Mining | 3 |
| Oil / petroleum | 3 |
| Technology | 1 |
|
| |||
| pole | |||
| штанга ударного бурения: 12 phrases in 6 subjects |
| Construction | 1 |
| Drilling | 1 |
| Geology | 3 |
| Mining | 3 |
| Oil / petroleum | 3 |
| Technology | 1 |