以下为句子列表：
英文: In this paper, through treating lines reciprocal transformation to a matrix, cogradiently reach the eigenvalue and eigenvector of a matrix, to solve the question treat a eigenvalue under without parameters, and given some advanced theorems.
中文: 摘要通过对矩阵进行行列互逆变换，同步求出矩阵特征值及特征向量，解决了不带参数求特征值问题，并给出一些新定理。
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英文: Classification and reciprocal transformation of plant life cycle forms
中文: 植物生活史型的划分及其相互转化
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