The analysis of vibration is introduced by its three factors-vibration amplitude, frequency and phase.
针对振动的三要素即振幅、频率及相位分别做了介绍；
With the use of holography, the mode, amplitude and phase distribution of gas turbine blade vibration can be determined.
利用全息照相，我们可以得到燃气轮机叶片振动时的振型、振幅和相位分布。
Adopted elastic supporting and altered exciting manner, two phase vibration frequency degeneration of the motor is realized.
采用弹性支撑和改变压电陶瓷激振方式，实现了电机两相振动频率的简并。
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