小波变换具有很好的时域和频域局部化特性，为以非稳态振动为特征的信号提供了有效的分析手段。
Wavelet transform possesses excellent characteristic of time frequency localization, and provides an effective measure for analysing signal causing unstable vibration.
小波变换具有很好的时域和频域局部化特性，它对以非稳态振动为特征的信号提供了很好的分析手段。
Wavelet transformation possesses excellent properties of time-frequency localization and thus provides an effective means for analyzing signals characterized by unstable vibration.
该模型充分考虑了由摇摆振动引起的附加惯性力的作用，属非稳态三维波动层流问题。
The model, which includes the effect of additional inertia forces by vacillation, describes a problem of unsteady three-dimension wavy laminar falling film absorption.
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