| |||
drawing ventilation | |||
extract ventilation | |||
extract ventilator | |||
blow off ventilation; ventilation by extraction; blowoff ventilation | |||
| |||
induced draught (draft) |
抽 气 通风 : 24 phrases in 6 subjects |
Agriculture | 1 |
Architecture | 2 |
Automobiles | 1 |
General | 1 |
Metallurgy | 1 |
Technology | 18 |