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....
The helicopter rotor blade deicing technique is greatly important to ensure the flight safe - ty.直升机旋翼桨叶除冰技术对保证直升机飞行安全是十分重要的.It is best to allow the rotor to rotate freely.最好让转子自由旋转.The rotor has recesses in its three fa...