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中文摘要：
采用了一个简单而有效的技巧，研究了一类扰动发展方程．首先引入求解一个相应典型方程的类孤波近似解，然后利用泛函映射方法得到了原扰动发展方程的近似解，指出了近似解级数的收敛性，并用解析方法，讨论了近似解的精度．
英文摘要：
The approximate solitary-like wave solution for a class of disturbed evolution equation is considered using a simple and valid technique. First, an approximate solution of a corresponding typical differential equation is introduced, and then the approximate solution for an original disturbed evolution equation is obtained using the functional mapping method. It is pointed out that the series of approximate solution is convergent. The accuracy of the approximate solution is also discussed using the analytic method.
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