The infrared spectrum and harmonic frequency are increasing, but the interval of frequency is decreasing.
红外光谱和谐振频率是增大的，而频率间隔是不断减小的。
But at the harmonic frequency, the system inductance increases greatly and the reactance of the filter circuit reduces greatly.
但对谐波频率而言，系统感抗大幅增加而滤波支路容抗大幅减小。
This paper introduces the computation method on the harmonic frequency of the torsional vibration in the mechanism of an antenna system.
介绍了天线系统驱动机构扭转振动谐振频率的计算方法。
There is an infinite number of harmonic-frequency components.
这里存在着数目无穷的谐频分量。
There is an infinite number of harmonic-frequency components.
这里存在着数目无穷的谐频分量。
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