 |
| |||
| closed-circuit ventilation | |||
| замкнутая вентиляция: 14 phrases in 6 subjects |
| Automobiles | 1 |
| Ecology | 1 |
| Military | 1 |
| Oil and gas | 1 |
| Packaging | 1 |
| Technology | 9 |
|
| |||
| closed-circuit ventilation | |||
| замкнутая вентиляция: 14 phrases in 6 subjects |
| Automobiles | 1 |
| Ecology | 1 |
| Military | 1 |
| Oil and gas | 1 |
| Packaging | 1 |
| Technology | 9 |