 |
| |||
| flat flame burner | |||
| плоская горелка: 5 phrases in 3 subjects |
| Firefighting and fire-control systems | 3 |
| Nautical | 1 |
| Oil / petroleum | 1 |
|
| |||
| flat flame burner | |||
| плоская горелка: 5 phrases in 3 subjects |
| Firefighting and fire-control systems | 3 |
| Nautical | 1 |
| Oil / petroleum | 1 |