The method of equivalent characteristic period is suggested in this article, thus to enable an easy application of evaluation results of seismic safety.
在对其进行分析研究的基础上，提出等效特征周期的方法，使一般的设计软件能方便使用地震安全性评价结果。
Compare to the normal rectangular waveguide, ridge waveguide has the character of broader bandwidth, smaller dimension, lower equivalent characteristic impedance, etc.
与普通矩形波导相比，脊波导具有工作频带宽、尺寸小、等效特性阻抗低等特点。
Compare to the normal rectangular waveguide, ridge waveguide has the character of broader bandwidth, smaller dimension, lower equivalent characteristic impedance, etc.
与普通矩形波导相比，脊波导具有工作频带宽、尺寸小、等效特性阻抗低等特点。
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