Some physical characteristics, such as phase and group velocities of the axial optical field, and energy gain of electrons etc.
对轴上光场的相速度和群速度以及电子能量增益等物理特征作了讨论。
The analytical expressions for the phase and group velocities of the axial optical field, accelerating potential and energy gain etc. are derived and are used to make numerical analysis.
给出了轴上光场的相速度和群速度、加速电位及电子能量增益等的解析表达式，并作了数值计算和分析。
The results indicate that this method not only can match completely group velocities among three waves, but also can achieve maximal parametric bandwidth for continuous tunable femtosecond BBO OPA.
结果表明，利用该方法不仅能够完全补偿飞秒BBO光参量放大在连续调谐时三波的群速失配，而且能够实现最大的参量带宽。
Slow sensory and motor nerve conduction velocities and decreased sensory nerve action potentials were found in group I.
神经传导速度测定结果提示，第一组可见感觉和运动神经传导速度减慢及感觉神经动作电位波幅降低。
The group velocity(U) corresponds to the net result from the addition of all elements with different periods and different velocities within the wave motion.
而群速度（U）符合于波动的不同周期，不同速度的各种因素叠加的净结果。
For complex structural geology of ATI areas, this research can provide the patterns of body-wave group-velocities and phase-velocities to benefit the theoretical research.
可以针对ati地区的地质情况，给出体波群速度和相速度变化图案，为进一步的理论研究提供便捷。
For complex structural geology of ATI areas, this research can provide the patterns of body-wave group-velocities and phase-velocities to benefit the theoretical research.
可以针对ati地区的地质情况，给出体波群速度和相速度变化图案，为进一步的理论研究提供便捷。
应用推荐