The water pump is a simple centrifugal pump driven by a belt connected to the crankshaft of the engine. the pump circulates fluid whenever the engine is running.是什么意思_The water pump is a simple centrifugal pump driven by a belt connected to the crankshaft of the engine. the pump circulates fluid whenever the engine is running.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句