The team examined the rate of evolution of the PSD proteins over millions of years of mammalian evolution, expecting the proteins to evolve at the same rate as other proteins.
研究小组还计算了在哺乳动物数百万年进化过程中P SD蛋白的进化速率，期待这些蛋白能以与其他蛋白一样的速率进化。
The measurement of other important parameters of optical systems with this kind of device and the factors that influence the accuracy of the PSD are also discussed.
还讨论了使用PS D测量先学系统其它参数的方法以及影响PS D测量精度的主要因素。
A simplified procedure is developed to acquire the surface fractal dimension of porous media utilizing the PSD information from mercury porosimetry or other analyses.
对原有的表面分形维数的计算方法进行了简化，借此可以利用压汞或其他分析方法获得的孔分布信息计算出多孔介质的表面分形维数。
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