 |
| |||
| plenum ventilation system (Alexander Demidov) | |||
| draw-in air system; draw-in system | |||
| приточная вентиляционная система: 2 phrases in 2 subjects |
| Construction | 1 |
| Energy industry | 1 |
|
| |||
| plenum ventilation system (Alexander Demidov) | |||
| draw-in air system; draw-in system | |||
| приточная вентиляционная система: 2 phrases in 2 subjects |
| Construction | 1 |
| Energy industry | 1 |