water pump impeller

• 水泵叶轮,水泵推板

water pump impeller的用法和样例：

例句

1. An optimization design system has been constructed and practically used for centrifugal compressor components and mixed-flow pump impeller.
   目前，已经建立了离心压气机部件及水泵叶轮的优化设计系统，并在工程设计中发挥了重要作用。