SEM, FTIR, XRD, Granularity Analysis and other analytical methods were used to characterize the sample of composite particles.

通过扫描电子显微镜(SEM)、傅立叶变换红外光谱(FTIR)、X射线衍射(XRD)以及粒度分析等分析手段对复合粒子进行表征。

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Sample principal component analysis and factor analysis has been one of the main methods of composite analysis, the communalities of variables is a key step of using these methods.

样本主成分和样本因子分析法已成为一种最主要的综合评价方法之一，指标变量的同趋势化是运用该方法的重要步骤。

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