周期波动 cyclical swings ; cyclical fluctuation ; cyclic swing
经济周期波动 economic cyclical changes ; [经] business cycle fluctuation ; business fluctuation ; CGDPR
长周期波动 long term cyclic fluctuation ; long period fluctuation ; long-period fluctuation
长周期波导的光栅 LPWG
周期性波动 periodic fluctuation
长周期波导光栅 LPWG
反周期波动的财政政策 countercyclical fiscal policy
非周期性速度波动 [机] aperiodic speed fluctuation ; aperiodic sp
非周期波 [物] aperiodic wave ; nonrecurrent wave
This paper deals with periodic wave solutions for the Davey-Stewartson equations via the extended mapping method. In the limit cases,the solitary wave solutions and some type of traveling wave solutions for the system are obtained.
本文通过拓展的映射方法研究Davey-Stewartson方程组新的周期波解,并在极限情况下,得到了方程组新的孤波解以及其他形式解。
参考来源 - Davey·2,447,543篇论文数据，部分数据来源于NoteExpress
除了振幅和波长，周期波有它自己的频率。
In addition to amplitude and wavelength, a periodic wave is characterized by its frequency.
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。
By the orbit in the phase portraits, different kinds of solitary wave, kink wave and periodic wave solutions are obtained.
用微分方程分支理论和计算机数值模拟方法研究广义CH方程的周期波解。
The periodic wave solutions of the generalized CH equation are investigated by using bifurcation theory of differential equations and numerical simulations.
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