但当你成为二时，你将做什幺？

But when you have become two, what will you do?

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刻划了具有P -正则自同态幺半群的二分图，讨论了字典序积图的自同态幺半群的P -正则性。

Bipartite graphs with P-regular endomorphism monoids are characterized. P-regularity of the endomorphism monoid of lexicographic product of graphs is discussed.

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在此运用二能级系统幺正演化算符的方法，求解几种较为典型特例的严格解，分析其相位的变化。

The properties of the weak-coupling bound polaron in quantum well are studied using the linear combination operator and the unitary transformation method.

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