The phase velocity of the plasma wave approaches the velocity of light due to the action of the longitudinal electric field.
在这样的纵向电场作用下，等离子体波的相速接近光速。
Fortunately, when a laser or charged particle beam is sent through a plasma, interaction with the plasma can create a longitudinal electric field.
幸运的是，当雷射或带电粒子穿过电浆时，与电浆的作用可创造出纵向的电场。
The longitudinal component of the electric field increase the write speed and provdies erasure.
纵向电场提高了写入速度及擦除速度。
In chapter 4, we solved the relativistic electron motion equation numerically to find the relation between the electron motion and the longitudinal component of the electric field.
在第四章中，通过对电子的相对论运动方程进行数值计算，研究了超强激光电场的纵向分量对电子运动产生的影响。
In chapter 4, we solved the relativistic electron motion equation numerically to find the relation between the electron motion and the longitudinal component of the electric field.
在第四章中，通过对电子的相对论运动方程进行数值计算，研究了超强激光电场的纵向分量对电子运动产生的影响。
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