离子声波 meaning in English

ion acoustic waves
ion sound wave
pseudosonic wave

The dispersion curves and simulated dispersion relationship of longitudinal waves without the langmuir wave , the ion sound wave and the ion plasma wave are obtained
得到了除朗缪尔波、离子声波和离子等离子体波外其它纵波的色散曲线和拟合色散关系。
Some classes of explicit and exact travelling wave solutions of a nonlinear dispersive - disspative equation ， which describes weak nonlinear ion - acoustic waves in a plasma consisting of cold ions and warm electrons ， are obtained by a kind of com bination of the direct algebraic method and the ansatze method . some results of other papers can be regard as a special case . the method in this paper can also be applied to the higher dimensional nonlinear evolution equations
本文通过直接代数方法与假设方法的一种结合求出了一个用于描述由冷离子和热电子组成的等离子体弱非线性离子声波演化的非线性色散-耗散方程的几类显式精确行波解.这里的结果包含已有文献的结果作为特例.本文的方法也适用于高维非线性发展方程