 |
| |||
| contacted area | |||
| площадь воздействия: 5 phrases in 4 subjects |
| Drilling | 1 |
| Firefighting and fire-control systems | 1 |
| General | 1 |
| Oil and gas technology | 2 |
|
| |||
| contacted area | |||
| площадь воздействия: 5 phrases in 4 subjects |
| Drilling | 1 |
| Firefighting and fire-control systems | 1 |
| General | 1 |
| Oil and gas technology | 2 |