| |||
| технологическая структура (Sergei Aprelikov) | |||
|
technological structure : 3 Phrasen in 2 Thematiken |
| Bergbau | 1 |
| Erdöl und Erdgas | 2 |
| |||
| технологическая структура (Sergei Aprelikov) | |||
|
technological structure : 3 Phrasen in 2 Thematiken |
| Bergbau | 1 |
| Erdöl und Erdgas | 2 |