-periodic orbit的意思|示意

Periodic changes in Earth's orbit could affect Earth's climate.

地球轨道的周期性变化会影响地球的气候。

This kind of periodic orbit is only a phase in a comet's life.

这种周期性轨道只是彗星生命中的一个阶段。

But the periodic orbit of the system must be found, before OGY method can work.

利用OGY方法必须预先知道系统要被稳定的周期轨道，并且这种方法控制的实时性较差。

The small control is adopted also in the phase control and the best phase matching between the control signal and the unstable periodic orbit is reached. Then the best effect of control is got.

外激励相位控制采用微小信号控制并使控制信号与系统的不稳定周期轨道达到最佳相位匹配，获得最佳控制效果。

The close return pairs technique is utilized to estimate an approximate desired periodic orbit.

利用闭回路对技术估计欲稳定周期轨的近似位置。

By the orbit in the phase portraits, different kinds of solitary wave, kink wave and periodic wave solutions are obtained.

通过相图中的各种轨道，获得了孤立波，扭子波和周期波的精确解。