rotor [ˈroʊtə(r)]

例句:

• rotor blades on a helicopter
  直升机的旋翼叶片
  
• A rotor from the engine makes the wheels of the car turn.
  发动机的轮子使车轮转动.
  
• It is best to allow the rotor to rotate freely.
  最好让转子自由旋转.
  
• I thought I could hear the sound of helicopter rotor blades.
  来自NEWYORKER
• It's a single rotor helicopter powered by batteries made by US Hybrid.
  来自VOA
• The rotor transports protons across the membrane, and is turned in the process.
  来自SA