wireless telegraphy direction finder

例句：

1. 1.The direction finder on the car's dashboard is a crucial tool for navigating through unfamiliar areas.
   汽车仪表盘上的指南针是导航不熟悉区域的关键工具。
2. 2. The direction finder helped us to quickly locate our campsite in the wilderness.
   方向指示器帮助我们在野外迅速定位我们的营地。
3. 3. During the construction of the new bridge, engineers used direction finders to ensure the alignment of the towers.
   在新桥的建设期间，工程师们使用方向指示器来确保塔的对齐。