“Pfaff-Birkhoff principle”的概念、定义、翻译、参考文献-科学参考

单词	Pfaff-Birkhoff principle
释义	Pfaff-Birkhoff principle Encyclopedia 理学力学变分原理释 Pfaff-Birkhoff principle普法夫-伯克霍夫原理将G.D.伯克霍夫在1927年给出的一类积分变分原理推广到包含时间的情形从而得到的积分变分原理。
随便看	Fubini-Study metric Fubini theorem Fubini-Tonelli theorem fubixing Fu Bojie Fu brick tea Fubright’s “Hearing on Vietnam” fucan Fu Cha Fu Chaowu Fu Chen Fucheng Fucheng Qu Fucheng Xian fu chengyi Fuchi Dao Fuchs Fuchsian differential equation Fuchsian equation Fuchsian form Fuchsian function Fuchsian group Fuchsian group of the first kind Fuchsian group of the second kind Fuchsian relation

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