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在具体研究过程中，主要运用了历史考查方法和比较研究方法，从纵横两方面对非婚生子女的法律保护诸问题进行考量。
In the specific course of study, author mainly use methods of history review and comparative study, to measure the protection problems of children born out of wedlock in length and breadth.
通过对四元数和四元数矩阵理论的历史与现状的考查，我们发现，从1843年英国数学家W 。
Through the research on the history and actuality of the quaternion and the quaternion matrix theory , we have found that , from 1843, when English mathematician W.
第一部分，首先简要的考查了不动产登记制度的历史；
The first part discusses such basis theories as the history, nature, function and principles of the real property registration.
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