| |||
| обвальные структуры | |||
| |||
| структура обрушения | |||
|
collapse structures : 11 phrases in 5 subjects |
| Construction | 6 |
| Firefighting and fire-control systems | 2 |
| Geology | 1 |
| Information technology | 1 |
| Security systems | 1 |
| |||
| обвальные структуры | |||
| |||
| структура обрушения | |||
|
collapse structures : 11 phrases in 5 subjects |
| Construction | 6 |
| Firefighting and fire-control systems | 2 |
| Geology | 1 |
| Information technology | 1 |
| Security systems | 1 |