rudder indicator

例句：

1. 1. The pilot used the rudder indicator to adjust the plane's course.
   飞行员使用舵指示器来调整飞机的航线。
2. 2. The engineer monitored the rudder indicator to ensure the aircraft was heading in the right direction.
   工程师监控舵指示器，以确保飞机朝正确的方向飞行。
3. 3. The flight crew used the rudder indicator to maintain altitude during landing.
   飞行机组人员使用舵指示器在降落过程中保持高度。