Basing on mode analyse, I make harmonic analysis and take breadth-frequency curve of fan-out nodal to back cover board nodal.
在模态分析的基础上，对三种结构的振子进行谐响应分析。
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Conclusion: Diltiazem depresses human atrioventricular nodal function in frequency-dependent manner, these effects lead to highly selective depression of AV nodal function during tachycardias.