The potential distribution and the perturbation multipole field of the different electrode defects in some electrostatic lenses were given.
计算了几个静电电子透镜的例子，给出了不同电极缺陷的电位分布和微扰多极场分布。
In this paper it is pointed out that the equation of field lines of a magnetic multipole with any order and degree can always be analytically expressed in term of finite form.
本文证明任意阶次磁多极子场力线方程总可以用有限形式解析地表示，并对偶极族和四极族磁多极子场力线的位形给予注记。
In solving electric field integral equations, fast multipole is used to make the computing efficiency greatly improved.
最后采用了快速多极子对电场积分方程进行求解，这样使得计算的效率得到很大的提高。
Electric multipole moment method is a simple and applied method of solving problems in electrostatic field.
法是处理静电场问题的一种简单而实用的方法。
The fast multipole method(FMM) is introduced to solve the magnetic vector potential in 3-D electromagnetoquasistatic field.
提出了一种求解任意形状线圈位于平板导体上方时矢量磁位的解析方法。
The fast multipole method(FMM) is introduced to solve the magnetic vector potential in 3-D electromagnetoquasistatic field.
提出了一种求解任意形状线圈位于平板导体上方时矢量磁位的解析方法。
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