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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。
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conservation of angular momentum
conservation of aquatic ecosystem
conservation of Chinese ancient books
conservation of crop germplasm resources
conservation of energy
conservation of energy, energy conservation
conservation of fishery resources
conservation of herbage germplasm
conservation of magnetic flux
conservation of mass
conservation of mass-energy
conservation of mechanical energy
conservation of molecular orbital symmetry
conservation of moment of momentum
conservation of momentum
conservation of number principle
Conservation of Oil Paintings
conservation of orbital symmetry
conservation of particle number
conservation of rare and endangered medicinal resources
conservation of resource theory
conservation of tea germplasm
conservation of terrestrial ecology
conservation of vorticity
conservation of water source areas
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