 |
| |||
| washing well bottom | |||
| промывка забоя скважины: 11 phrases in 6 subjects |
| Gold mining | 1 |
| Mining | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oilfields | 5 |
| Technology | 2 |
|
| |||
| washing well bottom | |||
| промывка забоя скважины: 11 phrases in 6 subjects |
| Gold mining | 1 |
| Mining | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oilfields | 5 |
| Technology | 2 |