目的：建立复方丹参缓释片多指标成分的体外释放度测定方法，评价其体外释药行为。

Objective: to develop the methods to determine the in vitro release of multi-target ingredients in Compound Danshen Sustained-release Tablets and to evaluate its release behavior in vitro.

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在多指标综合评价中，主成分分析方法是一种较为客观的综合评价方法。

Among the methods of multiple indexes comprehensive evaluation, primary component analysis (PCA) is a relatively objective one.

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而主成分分析法是一种多指标决策的统计方法，能有效弥补传统分析方法的弊端。

The main ingredient analysis, which can solve the traditional analysis problems effectively, is a kind of statistical analysis containing multiple attribute decision-making.

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