 |
| |||
| plant and process ventilation; process ventilation | |||
| industrial ventilation | |||
| промышленная вентиляция: 3 phrases in 3 subjects |
| Construction | 1 |
| Technology | 1 |
| Weapons of mass destruction | 1 |
|
| |||
| plant and process ventilation; process ventilation | |||
| industrial ventilation | |||
| промышленная вентиляция: 3 phrases in 3 subjects |
| Construction | 1 |
| Technology | 1 |
| Weapons of mass destruction | 1 |