divergence angle

• 扩张角,发散角

divergence angle的用法和样例：

例句

1. By giving the optimum reflectance finesse, the maximum beam divergence and minimum aperture of the Fabry-Perot interferometer can be obtained.
   由最优反射精细度可得到入射到标准具光束的最大发散角和标准具的最小通光口径。