静电透镜是利用静电场使电子束会聚或�散的一种装置其中某部分静电场的分布如下图所示虚线表示这个静电场在xoy平面内的一簇等势线等势线形状 Template




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tomski静电透镜是利用静电场使电子束会聚或�散的一种装置其中某部分静电场的分布如下图所示虚线表示这个静电场在xoy平面内的一簇等势线等势线形状 coloring