Yang Lian should strengthens extends the knee stage muscle strength use the practice.

杨炼要加强伸膝阶段肌肉力量利用的练习。

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The second chapter introduces major versions of the system about the Wu Wen's "Lian Yang Ji";

第二章阐述了吴雯《莲洋集》的各大版本系统的概念及具体区分情况；

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Yang Xiaowei and Lian Huadong have presented some effective interval methods for structures with interval parameters. Hansen in his book discussed the global optimization using interval analysis.

所以本文主要讨论了非线性的区间参数的动态优化问题。

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