短語(yǔ)詞組短語(yǔ)combination fire smoke damper 復(fù)合式防火防煙閥Fire resieting damper 防火閥fire volume damper 防火風(fēng)量調(diào)節(jié)閥Fire Resistant Damper 防火閥Fire resisting damper [安全]防火閥;防火閥fire -resisting damper 防火閥;防火擋板ceiling fire damper 吊頂防火閥Fire damper control unit 防火風(fēng)閘控制單元smoke and fire damper 防火閥 返回 fire damper