laser radar cross section

例句：

1. 1.The laser radar system is used to detect the presence of objects in the air.
   激光雷达系统用于探测空中物体的存在。
2. 2. The laser radar cross section is a critical parameter for determining the range of the target.
   激光雷达截面是确定目标距离的关键参数。
3. 3. The laser radar cross section measurement is crucial for the accuracy of the detection system.
   激光雷达截面测量对于检测系统的精度至关重要。