短語詞組短語feed -water heater [鐵路]給水預(yù)熱裝置open feed -water heater 開放式饋水加熱器closed feed -water heater 密閉給水加熱器regenerative feed -water heater 回熱給水加熱器high -pressure feed-water heater 高壓給水加熱器high pressure feed -water heater 高壓給水加熱器closed feed water heater 密封給水加熱器;密閉給水加熱;閉式給水加熱器circulation feed water heater 用水循環(huán)加熱器;循環(huán)補給水加熱器pressure feed water heater 低壓加熱器 返回 feed water heater