 |
| |||
| built-up support | |||
| составная опора: 5 phrases in 5 subjects |
| Drilling | 1 |
| Firefighting and fire-control systems | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Rail transport | 1 |
|
| |||
| built-up support | |||
| составная опора: 5 phrases in 5 subjects |
| Drilling | 1 |
| Firefighting and fire-control systems | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Rail transport | 1 |