The results show the radial diffusion affects not only the column efficiency, the peak spreading and the peak symmetry, but also the retention time.

结果表明，溶质的径向扩散不仅对柱效、峰展宽、峰形特征等有影响，而且对溶质的保留时间也有一定的影响。

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The problem of quadrature formula, normalization, symmetrization and peak spreading correction for experimental GPC chromatograms after partial smoothing or fitting a curve is discussed.

最后讨论了求积公式、归一化、对称化和GPC实验谱图的峰加宽改正问题。

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The government hopes auctioning the slots will reduce delays by spreading out flights to off-peak times.

CNN: Bush hopes to ease holiday travel congestion