flight mode annunciator

例句：

1. 1.The flight mode annunciator is used to indicate the airplane's altitude and speed.
   飞行模式指示灯用于指示飞机的海拔和速度。
2. 2. The flight mode annunciator was designed to help pilots monitor the aircraft's performance.
   飞行模式指示灯旨在帮助飞行员监控飞机的性能。
3. 3.During takeoff, the flight mode annunciator displays the aircraft's altitude and speed.
   起飞时，飞行模式指示灯显示飞机的海拔和速度。