短語詞組短語air -duct 通氣管道;通風(fēng)道;導(dǎo)氣管;氣槽fine air separating duct 后風(fēng)道air cleaner duct 空氣濾清器連接管air cleaner duct clamp 空氣濾清器連接管卡子return air ground duct 回風(fēng)地溝air heater duct 暖風(fēng)器通道air conditioning duct 空氣調(diào)節(jié)系統(tǒng)管道air conditioner duct 空調(diào)風(fēng)道 返回 air duct