rotor blade

例句：

1. 1. The helicopter's rotor blades spin at high speeds to lift the aircraft off the ground.
   直升机的旋翼叶片以高速旋转，使飞机能够离地起飞。
2. 2.The engineer carefully inspected each rotor blade for any signs of wear or damage.
   工程师仔细检查了每一片转子叶片，寻找任何磨损或损坏的迹象。
3. 3.The rotor blades are designed to be lightweight and durable, making them ideal for use in high-altitude environments.
   转子叶片设计轻巧且耐用，使其非常适合在高海拔环境中使用。