 |
| |||
| structure failure (Александр Стерляжников) | |||
| обрушение конструкций: 12 phrases in 6 subjects |
| Astronautics | 1 |
| Bridge construction | 1 |
| Construction | 6 |
| Firefighting and fire-control systems | 1 |
| Road works | 1 |
| Technology | 2 |
|
| |||
| structure failure (Александр Стерляжников) | |||
| обрушение конструкций: 12 phrases in 6 subjects |
| Astronautics | 1 |
| Bridge construction | 1 |
| Construction | 6 |
| Firefighting and fire-control systems | 1 |
| Road works | 1 |
| Technology | 2 |