生成变量（generation by equation）与Workfile 中的generate 功能类似，是在现 有变量基础上生成新的变量。建议读者使用Workfile 中的generate 功能来生成新变量。
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By using coupled-mode equation, the formula for conversion efficiency of Cerenkov second harmonic generation (CSHG) is deduced in this paper.
从耦合模方程出发，推导了切伦科夫倍频转换效率公式，并得出该效率主要是由交叠积分决定的结论；
Short term optimization of hydroelectric generation is a procedure problem and should be solved by the variational method of functional extreme value, i. e. , the famous Eulerian equation.
短期水电优化是过程问题，应该用泛函极值的变分法即欧拉方程求解。
The processes responsible for the generation of a supercontinuum are identified though the simulation of the nonlinear Schrodinger equation by Split-step Fast Fourier Transform Method.
利用分步傅立叶法数值模拟了广义的非线性薛定谔方程， 分析研究了 多种条件下超 连续光谱的产生过程；
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