Chapter three introduces the nonequilibrium Green function method and its applications in mesoscopic transport, and the widely-employed Keldysh equation of motion with a current formula are induced.
第三章介绍了非平衡格林函数方法及其在介观输运中的应用，推导了广泛应用的运动方程以及电流公式。
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。
In this paper, according to the current track equation of motion system, some typical motion system track has been analyzed.
针对运动系统的一般轨迹方程，分析了几种典型的运动系统轨迹。
In this paper, according to the current track equation of motion system, some typical motion system track has been analyzed.
针对运动系统的一般轨迹方程，分析了几种典型的运动系统轨迹。
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