double-sided impeller

例句：

1. 1.The double-sided impeller is designed to improve the efficiency of the mixing process.
   这种双面叶轮的设计旨在提高混合过程的效率。
2. 2.The engineer used a double-sided impeller to create a more even flow in the mixing chamber.
   工程师使用了一个双面叶轮来在混合室中创造更均匀的流动。
3. 3. The double-sided impeller was crucial for the successful operation of the new blending machine.
   这个双面叶轮对于新混合机器的成功运行至关重要。