“Poincaré-Birkhoff normal form”的概念、定义、翻译、参考文献-科学参考

单词	Poincaré-Birkhoff normal form
释义	Poincaré-Birkhoff normal form Encyclopedia 理学分岔释 Poincaré-Birkhoff normal form庞加莱-伯克霍夫范式对降维所得到的系统进行简化，在保持分岔特性的前提下尽可能转化为一种较为简单和规范的形式。
随便看	position inversion operator position line position location reporting system position matching position measurement position micrometer position of a game position of point symmetry position of readiness for action position of similarity position of symmetry position of the conduction band position of the people's police position of the valence band position on stage position operator in position representation position parameter position plane position point position reporting position representation position retrieval Positions and Proper Motions Star Catalogue position sensitive detector position sensitive proportional counter

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