... 振幅码 amplitude code; 振幅密度谱 amplitude density spectra; 振幅内耗峰 amplitude internal friction peak; ...
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The track spectra of Qinhuandao-Shenyang(QS) passenger railway line and German railways were compared in terms of power spectrum density(PSD), amplitude of time domain samples and dynamic performance.
从轨道谱的功率谱密度、时间样本幅值及对动力学性能影响的角度，对比了秦沈线轨道谱和德国轨道谱。
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