The result fo Principal Component Analysis (PCA) shows that the vegetative characters are the major characters in morphological classification of C.

主成分分析结果表明，营养器官是狗牙根形态分类的重要指标。

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This paper proposes a method based on Principal Component Analysis (PCA) combined with improved K-means for action potential classification.

基于此，提出基于主元分析(pca)和改进K均值相结合的动作电位分类方法。

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The electronic tongue was used in combination with principal component analysis (PCA) for the classification of tea samples from three quality grades.

电子舌测定结合主成分分析法(pca)的结果显示，在第一和第二主成分的得分图上，电子舌可以区分特征十分相近的不同等级的普洱茶。

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