计算大气光谱透射率与平均透射率，能分别计算水蒸气、二氧化碳、散射、雨雪雪造成的大气光谱与大气平均透射率。具体用法详见程序源码注释。 可直接使用。

-Calculate the atmospheric spectral transmittance of the average transmission rate, respectively, to calculate the atmospheric water vapor, carbon dioxide, scattering, rain and snow snow spectra and average atmospheric transmissivity. Specific usage refer to the program source code comments. Can be used directly.