By statistical analysis to absorbance ratio of group characteristic frequency, it is discovered that the good relative rule consist in the ratio and binder chief properties.
通过基团特征频率吸光度比值的统计分析，发现其比值与粘结剂主要性能之间存在着很好的相关规律。
The design concept of the relative frequency amplitude ratio and the relative frequency width of toque motor stiffness of electro-hydraulic servo valve are proposed.
提出了利用相对频率幅值比和相对频宽的电液伺服阀力矩马达的设计概念。
Results the relative signal-to-noise ratio of the pathologic voice on high frequency differed significantly from that of the normal voice.
结果病态嗓音和正常嗓音的频谱高端相对信噪比存在显著差异。
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