Anh
circulating air
recirculated air
Đức
Umluft
Pháp
air de circulation
air recyclé
air recirculé
air de circulation,air recyclé /TECH,ENG-MECHANICAL/
[DE] Umluft
[EN] circulating air
[FR] air de circulation; air recyclé
air recirculé,air recyclé /SCIENCE/
[EN] recirculated air
[FR] air recirculé; air recyclé