manual signal cabin

例句：

1. 1.The manual signal cabin is a crucial part of the navigation system.
   手动信号舱是导航系统的重要组成部分。
2. 2.The pilot used the manual signal cabin to communicate with the ground control.
   飞行员使用手动信号舱与地面控制进行通信。
3. 3.In this emergency, the manual signal cabin was used as a lifeboat for the passengers.
   在这个紧急情况下，手动信号舱被用作乘客的救生艇。