infrared beam divergence

例句：

1. 1. The scientist used an infrared beam to detect the temperature of the object.
   科学家使用红外光束来探测物体的温度。
2. 2.The infrared beam diverged due to the angle of incidence.
   由于入射角的原因，红外光束发散了。
3. 3.The infrared beam was used to map out the terrain for the construction project.
   红外光束被用来为建设项目绘制地形图。