The paper discuss socioeconomic drive mechanism of land use change in Qianguo County by using the multivariate regression analysis method and the principal component analysis method.

运用多元回归分析法和主成分分析法，讨论了前郭县土地利用变化的社会经济驱动机制。

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After establishing evaluation index system, I select the method which combines the analytic hierarchy process with principal component regression in determining evaluation index weight method.

评价指标体系建立以后，在确定评价指标权重的方法上，作者选用了层次分析法和主成分分析法相结合的方法。

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Method: All compounds in annaka injection were determined simultaneously by principal component regression, the results obtained by PCR were compared with those obtained by the standard method.

方法：采用主成分回归法同时测定安钠咖注射液中各组分含量，且与药典方法测定的结果进行了比较。

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