程序根据Q迭代，即以同位素相对分离系数作为级联计算中的迭代变量，相比于传统以丰度作为迭代变量的方法，Q迭代效率更高、且有推广意义-According to Q iterative procedure, that the relative isotope separation factor as a cascade calculation iteration variable, compared to the traditional abundance as the iteration varia