| |||
| технологическая структура (Sergei Aprelikov) | |||
|
technological structure : 4 phrases in 3 subjects |
| Firefighting and fire-control systems | 1 |
| Mining | 1 |
| Oil and gas | 2 |
| |||
| технологическая структура (Sergei Aprelikov) | |||
|
technological structure : 4 phrases in 3 subjects |
| Firefighting and fire-control systems | 1 |
| Mining | 1 |
| Oil and gas | 2 |