日期：
来源：雅诚德英语网
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。
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。