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主解
1、forborne principal───前移本金
2、principal office───总部，总社；总办事处；校长室；总店，总部，总社
3、principal investigator───首席调查员；主要研究者
4、solution───n.解决方案；溶液；溶解；解答
5、principal───n.ShouChang；校长；资本；当事人；adj.主要的；资本的
6、principal engineer───首席工程师
7、school principal───校长
8、principal boy───n.哑剧男主角（常由女演员扮演）；哑剧中的男主角
9、principal components───主分量；主成分
1、Although his principal work, The Search after Truth covers a wide variety of topics, Malebranche is remembered principally for his theory of occasionalism as a solution to Descartes' mindbody problem.───虽然他最重要的著作《真理的探索》涉及诸多的话题，但他最出名的理论是为解决笛卡尔心物二分问题而提出的偶因论。
2、This one-stop " " service has become a client of all service providers to achieve diversity competition lecturers'principal solution.───这种“一站式”任职还来成为各任职商排斥客户，达成不差异化比赛的次要处置方案。
3、Bone grafting is the principal solution for clinical bone defects problem.───植骨术是解决临床骨缺损这一棘手问题的主要方法。
4、In the Assay the chromatogram obtained with solution (2) shows a peak with the same retention time as the principal peak in the chromatogram obtained with solution (1).───在该分析中，采用溶液（2）得到的色谱图中有一个峰与采用溶液（1）得到的色谱主峰具有相同的保留时间。
5、We proved that each square quaternion matrix has at least one right characteristic principal value and its eigenvector, and a concrete solution was given.───证明了对每一个四元数矩阵，至少存在一个右特征主值，存在一个属于它的特征向量，并给出了具体的求解方法。