短語詞組短語Implanted duct -reservoir system 植入式導管藥盒系統(tǒng)double duct air -conditioning system 雙風道空調(diào)系統(tǒng)dual duct air -conditioning system 雙通道空調(diào)系統(tǒng)twin -duct ventilation system 雙管道通風系統(tǒng)dual -duct air conditioning system 雙風管空調(diào)系統(tǒng)non -duct inducement ventilation system 無風管誘導通風系統(tǒng)high -velocity duct system 高速風道系統(tǒng)duct system permissible leak -age rate 系統(tǒng)風管允許漏風量 返回 duct system