 |
| |||
| medium distribution system | |||
| распределительная система трубопроводов: 10 phrases in 5 subjects |
| Construction | 1 |
| Energy industry | 2 |
| Firefighting and fire-control systems | 2 |
| Oil / petroleum | 1 |
| Oil and gas technology | 4 |
|
| |||
| medium distribution system | |||
| распределительная система трубопроводов: 10 phrases in 5 subjects |
| Construction | 1 |
| Energy industry | 2 |
| Firefighting and fire-control systems | 2 |
| Oil / petroleum | 1 |
| Oil and gas technology | 4 |