periscope radar

例句：

1. 1. The periscope radar is a crucial tool for detecting underwater objects.
   观景镜雷达是探测水下物体的关键工具。
2. 2.The police used a periscope radar to track down the suspect in the car theft case.
   警方使用观景镜雷达追踪到那辆汽车盗窃案中的嫌疑人。
3. 3.The periscope radar was used to monitor the traffic conditions during the construction of the new highway.
   观景镜雷达被用来监测新高速公路建设期间的交通状况。