spread beam meaning in English
射束扩展
Examples
- It compute the parameter of deflexion caused by thermal distortion in orbit , deduce the general expression for spreading beam after thermal distortion of reflector and the center deflexion of facula received in ccd . with the method of fixing etc , it put forward the restrain measures adopted accordingly
计算了在轨运行条件下反射镜面热变形引起的表面法向偏转参数,推导了镜面变形后出射光线的通用表达式以及镜面变形前后在ccd探测器上的接收光斑中心偏转量的计算表达式。