运气术语。气分四时，以说明其气数迟早多少及其正常变化的规律。《素问·六元正纪大论》：“明其正化。”张景岳注：“当其位者为正，非其位者为邪。”如五运中的木运临卯，火运临午，土运临四季，就是当其位，当其位则按正常的规律而变化，属于平气之年。
讨论了极性半导体中表面极化子重正化质量的性质。
In this paper, renormalization mass of the surface polaron in polar crystals were studied.
重正化群方法已成为获得这类问题精确解的一致有效渐近展开式的有用工具。
Renormalization group method is an effective tool to obtain the uniformly valid asymptotic expansion exact solutions of this kind of problems.
介绍了重正化群方程的一种有效的数值解法，并与多项式展开的传统解法作了比较。
An effective numerical solution of renormalization group equations is introduced, and compared with the traditional solution of polynomial expansion.
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