 |
| |||
| foam layer | |||
| слой пены: 10 phrases in 5 subjects |
| Chemistry | 1 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 6 |
| Mining | 1 |
| Technology | 1 |
|
| |||
| foam layer | |||
| слой пены: 10 phrases in 5 subjects |
| Chemistry | 1 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 6 |
| Mining | 1 |
| Technology | 1 |