Anh
active gas
current gas
working gas
Đức
Aktivgas
Arbeitsgas
Nutzgas
Pháp
gaz utile
respiration
active gas,current gas,working gas /SCIENCE,TECH/
[DE] Aktivgas; Arbeitsgas; Nutzgas
[EN] active gas; current gas; working gas
[FR] gaz utile; respiration