本文研究了激光拍频波加速器中的三波相互作用过程。
The three-wave interaction in a laser beat-wave accelerator are studied.
三波共振相互作用低频振荡周期与初始扰动振幅有很强的相关关系；
The low-frequency fluctuation periods and the initial amplitudes have close relationship in the resonance interaction.
本文从非平衡统计理论出发，讨论了三光子参量系统中泵浦波、信号波和空闲波之间的非线性波-波相互作用。
In this paper, the nonlinear wave-wave interactions among the "pump" wave, "signal" wave aud "idle" wave have been discussed, starting from nonequilibrium theory.
对于相同的初始扰动振幅，随着波数的增加，低频振荡周期缩短，三波逐渐变得不稳定，三波之间较强的相互作用时间缩短。
For the same initial amplitudes, the periods are becoming short, the three waves are gradually becoming instability, and the time of strong interaction is shorting with increasing of wave Numbers.
第三，建立了基于SPH方法的孤立波和规则波与水平结构物相互作用的二维数值模型。
Thirdly, the two-dimensional numerical model of solitary wave and regular wave slamming to leveling board is built on the basis of SPH method.
第三，建立了基于SPH方法的孤立波和规则波与水平结构物相互作用的二维数值模型。
Thirdly, the two-dimensional numerical model of solitary wave and regular wave slamming to leveling board is built on the basis of SPH method.
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