短語詞組短語Aeration n system 曝氣系統(tǒng)aeration blowing system 鼓風(fēng)曝氣系統(tǒng)aeration control system 通風(fēng)控制系統(tǒng)mechanically agitated aeration system 機械攪動曝氣系統(tǒng);壞攪動曝氣系統(tǒng)step aeration system 階段曝氣法counter current aeration system 反向流fine porous aeration system 微孔曝氣系統(tǒng)hypolimnion aeration system 滯水帶曝氣系統(tǒng) 返回 aeration system