airborne laser beacon

例句：

1. 1.The airborne laser beacon system is used for precise navigation in urban areas.
   空中激光指示系统用于城市地区的精确导航。
2. 2.The airborne laser beacon was the first to provide real-time data on traffic conditions.
   空中激光指示器是第一个提供实时交通状况数据的设备。
3. 3. The airborne laser beacon helped improve safety during construction operations.
   空中激光指示器在施工作业中提高了安全性。