 |
| |||
| дымность (olga garkovik); дымность выхлопных газов (olga garkovik) | |||
| smoke opacity: 5 phrases in 4 subjects |
| Ecology | 1 |
| Firefighting and fire-control systems | 1 |
| Mechanic engineering | 2 |
| Transport | 1 |
|
| |||
| дымность (olga garkovik); дымность выхлопных газов (olga garkovik) | |||
| smoke opacity: 5 phrases in 4 subjects |
| Ecology | 1 |
| Firefighting and fire-control systems | 1 |
| Mechanic engineering | 2 |
| Transport | 1 |