 |
| |||
| flame intensity (горелки Vertep) | |||
| интенсивность пламени: 4 phrases in 3 subjects |
| Astronautics | 2 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |
|
| |||
| flame intensity (горелки Vertep) | |||
| интенсивность пламени: 4 phrases in 3 subjects |
| Astronautics | 2 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |