impeller [ɪm'pelə]

例句:

• The flow of air through the fan is substantially parallel to the impeller axis.
  通过风机的气流基本上是与叶轮轴平行的.
  
• Impeller are open, and closed three - Banbi, as shown in Figure 2 - 2 .
  叶轮有开式 、 半闭式和闭式三种, 如图 2-2 所示.
  
• Also discussed are the effects of suction pressure and impeller vane number.
  还对吸入压力和叶轮叶片数的影响进行了讨论.
  
• Inside the pump is a spinning impeller, resembling a fan, that pushes the water into a discharge hose.
  来自WSJ