FNR

例句：

1. 1. The FNR is a new type of radar that can detect objects in the air.
   FNR是一种新型雷达，可以在空中探测物体。
2. 2. The FNR system is designed to improve communication between ships and shore.
   FNR系统旨在改善船舶与岸基之间的通信。
3. 3. The FNR is used to monitor traffic on highways and roads.
   FNR用于监测高速公路和道路上的交通情况。