给出动态逐片装调方法和激光调谐实验结果。

Aligning and installing methods and the results on laser tuning experiments are presented.

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在第三章，我们主要研究了Y星上逐片同胚映射的迭代根的问题。

In the third chapter, we study mainly iterative roots of piecewise homeomorphic maps of an Y-star.

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此外，还得到了树映射是强非混沌以及逐片单调树映射的拓扑熵为零的几个等价条件。

Furthermore, we also obtain a few equivalent conditions which a tree map is strongly not-chaotic and a few equivalent conditions which a piecewise monotone tree map has topological entropy zero.

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