“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	interface energy interface equation interface facture mechanics interface free energy interface functions interface hydrology interface jump conditions interface material interface morphology of solidification interface of ceramics interface of satellite and rocket interface problem interface reaction Interface Region Imaging Spectrograph interface requirements interface resistance interface scattering interfaces of crystalline materials interface specification interface state interfaces within pratacultural system interface technology in steel manufacturing process interface tensiometer interface testing interface tracking method

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