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本文讨论描述简谐波折射和绕射组合现象的二维微分方程的推导和求解这方程的方法。该方程借助小参数的展开导出,其求解的方法是基于有限元法和源分布法。
This article discusses the derivation of two-dimensional differential equations describing the combination of harmonic refraction and diffraction phenomena and the method of solving this equation. The equation is derived with the help of small parameters and the solution is based on finite element method and source distribution method.