考虑束-离子通道边界上等离子体电子可能发生的扰动，导出了TM模本征方程的理论式。
Considering the disturbance of the plasma electrons at the beam-ion channel boundary, the eigen-equation of TM mode has been derived.
论文第二章研究了等离子体中横向扰动下的(3 + 1)维弱非线性离子声波，得到了描述离子声孤波的(3 + 1)维kp方程。
In chapter two, the (3 + 1) dimensional weakly nonlinear ion acoustic wave at higher order transverse perturbations in plasma was discussed and described by the Kadomtsev-Petviashvili (KP) equation.
地面入射的大功率无线电波能加热电离层等离子体，引起电离层电子温度和密度的扰动，实现电离层的地面人工变态。
The terrestrial ionospheric plasma can be heated by a powerful ground-based high-frequency radio wave, which results in the disturbance of the electron temperature and density.
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