... high-frequency anomaly 高频异常 high-frequency approximation 高频近似 high-frequency asymptote 高频渐近 ...
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The exact formulae of the acoustical impedance of a narrow slit and its low-frequency approximation are available.
窄缝的声阻抗严格公式以及低频近似公式都存在。
The amount of calculation is greatly decreased over high frequency zones by using high-frequency approximation method.
采用相对相位叠加的高频近似方法，处理天线阵高频区散射的计算，大幅减少了计算量。
The high-frequency approximation solution that includes the caustic region is obtained with the method combining the geometrical optics.
解决了几何光学法无法在焦散区求解的问题。
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