It is found that these pattern are caused by short-wave instability through the linear stability analysis.
通过对模型进行线性稳定性分析，发现这些时空斑图是由于短波不稳定性所引起的。
The growing ion acoustic wave instability caused by the slow electron drift is studied by both CW and pulse modulated wave methods.
用连续波和调制脉冲波两种方法研究了由慢电子漂移引起的增长离子声波不稳定性。
It is shown that the flow instability with high frequency belongs to acoustic oscillation and the flow instability with low frequency is density wave instability.
高频脉动属于声波型脉动，低频脉动属于密度波型脉动。
It is shown that the flow instability with high frequency belongs to acoustic oscillation and the flow instability with low frequency is density wave instability.
高频脉动属于声波型脉动，低频脉动属于密度波型脉动。
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