rotor axis

例句：

1. 1. The rotor axis is crucial for the aircraft's stability.
   转子轴对于飞机的稳定性至关重要。
2. 2. During the flight test, the rotor axis was carefully checked to ensure its alignment.
   在飞行测试期间，仔细检查了转子轴以确保其对齐。
3. 3. The rotor axis is a critical component of the aircraft's control system.
   转子轴是飞机控制系统的关键部件。