葉輪

水坝涡轮发电机的叶轮

葉輪（英語：[1]）是一種用來增加（或減少）流體壓力和速度的旋轉裝置。

引用來源
  1. "impeller, n.". OED Online. March 2013. Oxford University Press. 20 March 2013 .
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