axial flow impeller

例句：

1. 1.The new aerodynamic design of the engine has significantly improved its efficiency.
   这款发动机的新气动设计大大提高了其效率。
2. 2. The axial flow impeller is crucial for the efficient operation of the turbine.
   轴向流动叶轮对于涡轮机的有效运行至关重要。
3. 3.The axial flow impeller was designed to minimize vibration and noise during operation.
   轴向流动叶轮的设计旨在最小化操作过程中的振动和噪音。