 |
| |||
| структура обрушения | |||
|
collapse structure : 8 phrases in 6 subjects |
| Construction | 1 |
| Energy industry | 2 |
| Firefighting and fire-control systems | 2 |
| Geology | 1 |
| Information technology | 1 |
| Security systems | 1 |
|
| |||
| структура обрушения | |||
|
collapse structure : 8 phrases in 6 subjects |
| Construction | 1 |
| Energy industry | 2 |
| Firefighting and fire-control systems | 2 |
| Geology | 1 |
| Information technology | 1 |
| Security systems | 1 |