阶次分析是基于FFT的一种时频转换谱分析，它是变速旋转机械体振动分析的最重要的一种方法。
Order analysis based on FFT is a transform between time-domain signal and frequency-domain signal and furthermore, it is the most important vibration analysis of rotational machinery.
研究旋转机械在变速过程中振动信号的分析方法。
An analysis method for vibration signals in varying speed process of the rotating machinery is explored.
研究旋转机械在变速过程中振动信号的分析方法。
An analysis method for vibration signals in varying speed process of the rotating machinery is explored.
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