rotating loop radio beacon

例句：

1. 1. The rotating loop radio beacon system is used to locate and track aircraft in the sky.
   旋转环路无线电信标系统用于在空中定位和跟踪飞机。
2. 2. The rotating loop radio beacon was a major breakthrough in communication technology.
   旋转环路无线电信标是通信技术的重大突破。
3. 3. The rotating loop radio beacon is crucial for maintaining air traffic control during emergencies.
   旋转环路无线电信标在紧急情况下对维持空中交通控制至关重要。