Based on the definition of norms in continuous function Spaces, a concept of distance between the operation state and the post-fault stable equilibrium state is suggested.
根据连续函数空间范数的定义，提出了电力系统运行状态与故障后稳定平衡状态之间距离的概念。
2
Amplitude: the biggest distance that object leaves equilibrium position.
振幅：振动物体离开平衡位置的最大距离。
3
The gravity in the moon from the static point 28000 kilometers place, the moon and the earth in the distance on the gravitational equilibrium.