问题描述：
英语翻译
If the force is periodic,it can be decomposed into a combination of harmonic ones on use of Fourier series.
The machine and foundation can vibarate with much greater independence above a resonance frequency of the system.Here take the transverse excitation and motion into account.
If the force is periodic,it can be decomposed into a combination of harmonic ones on use of Fourier series.
The machine and foundation can vibarate with much greater independence above a resonance frequency of the system.Here take the transverse excitation and motion into account.
问题解答：
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