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主成分；知组分
1、component───adj.组成的；构成的；n.组成部分；成分；组件，元件
2、component part───（组合）零件，部件，（组）成（部）分；构件；组成部份
3、prevertebral component───椎体前成分
4、principal boy───n.哑剧男主角（常由女演员扮演）；哑剧中的男主角
5、passive component───n.[电子]无源元件
6、principal───n.ShouChang；校长；资本；当事人；adj.主要的；资本的
7、principal components───主分量；主成分
8、component parts───零部件；元件部分
9、principal office───总部，总社；总办事处；校长室；总店，总部，总社
1、Methods of principal component analysis, grey incidence analysis were employed.───研究方法：主成分分析法、灰关联分析。
2、It showed that the main driving factor was the increase of population growth and urbanization by Principal component analysis.───主成分分析结果表明，湖北省耕地资源变化主要驱动因子是人口增加与城市化率的上升。
3、A popular decomposition called principal component analysis (PCA) is widely used for feature extraction.───主成分分析 (P C A)分解法被广泛地应用于特征抽取的过程。
4、Furthermore, the principal component scores can and should always be used to help validate the results of clustering programs.───此外，通过主成分得分可以而且应该总是被用来帮助验证了结果的聚类的节目。
5、The second principal component's characters were all correlated with commodity characters, so was called commodity character factors.───主成分2的性状均与食葵的商品性状有关，可称为食葵商品质量构成因子；
6、The principal component analysis implements the column-wise compression, using the correlation between attributes.───主成分分析使用属性之间的相关性实现按列压缩。
7、The principal component model and the regression model between the total dissolved solids and ions content were established in this paper.───建立了主成分分析模型和总溶解固体与离子含量间的回归模型。
8、It utilizes principal component analysis method to determine index weight and chooses Yellow River Delta as a case of demonstration.───运用主成分分析法客观确定指标权重，对黄河三角洲区域的生态可持续进行了实证研究。
9、As the principal component in glass, silicon dioxide was used as early as 5000 BC.───作为玻璃的主要成分，二氧化硅早在公元前5000年就被使用。