短語(yǔ)詞組短語(yǔ)Implanted duct -reservoir system 植入式導(dǎo)管藥盒系統(tǒng)double duct air -conditioning system 雙風(fēng)道空調(diào)系統(tǒng)dual duct air -conditioning system 雙通道空調(diào)系統(tǒng)twin -duct ventilation system 雙管道通風(fēng)系統(tǒng)dual -duct air conditioning system 雙風(fēng)管空調(diào)系統(tǒng)non -duct inducement ventilation system 無(wú)風(fēng)管誘導(dǎo)通風(fēng)系統(tǒng)high -velocity duct system 高速風(fēng)道系統(tǒng)duct system permissible leak -age rate 系統(tǒng)風(fēng)管允許漏風(fēng)量 返回 duct system