The main parts of pump are suction-stage, middle-stage, discharge-stage, bearing support, motor support, impeller, diffusor, shaft, shaft bearing, shaft sleeve, balance kettle, balance sleeve etc.是什么意思_The main parts of pump are suction-stage, middle-stage, discharge-stage, bearing support, motor support, impeller, diffusor, shaft, shaft bearing, shaft sleeve, balance kettle, balance sleeve etc.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句