mie散射计算，计算时间短，影响大，尺度系数范围大，应用广-mie scattering, calculated time is short, high-impact, large-scale coefficient range, wide application

该源码用于计算球形粒子米氏散射根据Bohren和 Huffman 理论-Translation of Bohren and Huffman code for the Mie calculation of spheres.