论文部分内容阅读
几乎每一个厂矿都应用离心水泵,它所消耗的能量是十分可观的。因而,目前世界各团在节能活动中、把一部分注意力集中在挖掘离
Centrifugal pumps are used in almost every factory and mine, and the energy it consumes is considerable. As a result, all groups in the world are currently focusing on digging away from energy-saving activities.