English translation for "回用空气"

return air

Similar Words：

"回用废纸" English translation, "回用废纸，回用纤维" English translation, "回用工艺" English translation, "回用混凝土" English translation, "回用酵母" English translation, "回用料" English translation, "回用砂" English translation, "回用水" English translation, "回用纤维" English translation, "回邮代金券" English translation