air circulation ratio,rate of air circulation /SCIENCE/
[DE] Luftumwaelzrate
[EN] air circulation ratio; rate of air circulation
[FR] coefficient de brassage; débit de brassage
air changes per hour,rate of air circulation /ENG-MECHANICAL/
[DE] Luftdurchsatz; Luftumlaufzahl; Luftwechselzahl
[EN] air changes per hour; rate of air circulation
[FR] taux de brassage; taux de circulation d' air