 |
| |||
| anti-humo (Ivan Gribanov); de protección contra humo (Ivan Gribanov) | |||
| противодымный: 3 phrases in 3 subjects |
| Chemistry | 1 |
| Firefighting and fire-control systems | 1 |
| Technology | 1 |
|
| |||
| anti-humo (Ivan Gribanov); de protección contra humo (Ivan Gribanov) | |||
| противодымный: 3 phrases in 3 subjects |
| Chemistry | 1 |
| Firefighting and fire-control systems | 1 |
| Technology | 1 |