Cold air

同义词释义

1)Cold air,低温气体2)cryogenic gas regulator,低温气体调节器3)low-temperature gas nitriding,低温气体渗氮4)low temperature gas separation,低温气体分离5)low temperature gas multicomponent thermochemical treatment,低温气体多元共渗6)low-temperature recovery process,低温（气体）回收过程