Having adopted the quadratic approximation of potential, we can solve the equation and get the approximately analytical solutions of Gaussian typed breath mode.
对势函数采用二阶近似后，求解此方程得到高斯型呼吸模式的光束宽度的近似解析式。
Therefore, the boundary-integral equation techniques are put forward to solve this problem and to obtain the approximately analytical solutions of scattered waves on the edge of cutout in shell.
为此，建立了求解该问题的边界积分方程法，利用积分方程法可获得问题的近似分析解。
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