The existing theory of international trade could be distinguished into two main sorts named comparative advantage based on factor analysis and competitive advantage based on competitiveness.

基于要素分析的比较优势理论和基于竞争力分析的竞争优势理论是国际贸易的两个主要理论。

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Then analysis several main factors use of principal component analysis algorithm, rejecting the factor with minimum weight.

对其中的几个主要因素进行主成分分析，剔除权重最小的因素；

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This paper calculates the extra force caused by a driving automobile on pavement with a hollow spot, and analysis the main factor influencing to the extra force.

本文分析计算了汽车行驶在坑槽路段上时对路面各点所产生的附加压力，并分析了影响附加压力的主要因素。

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The five main dimensions of human personality were discovered using a statistical technique called factor analysis.

ECONOMIST: Animal behaviour