lagrange equation of motion 拉格朗日运动方程
At the beginning of the first chapter the derivation from the Lagrange and Hamilton to the motion equation of a charged particle in magnetic fields in classic mechanics is presented.
论文的第一章是基础理论，一开始是推导经典力学中的单个带电粒子在电磁场中的运动方程，分别从拉氏量和哈密顿量推导。
The jerky motion of electric current may be described by three-order Lagrange equation.
三阶拉格朗日方程可以用来描述电流猝变运动。
Fluids: pressure, hydrostatics, Euler and Lagrange variables of a continuum, continuity equation, Euler equation of motion.
液体：压力、静水力学、欧拉和拉格朗日中值变量的连续性、连续性方程、欧拉方程的运动。
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