XBD-ZLG(ZLW) single entry single stage fire pump is composed of motor and pump.Pump and motor share a shaft.Pump is composed of pump body, impeller, pump cover and mechanical seal, etc.是什么意思_XBD-ZLG(ZLW) single entry single stage fire pump is composed of motor and pump.Pump and motor share a shaft.Pump is composed of pump body, impeller, pump cover and mechanical seal, etc.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句