Method of calculations for electron beam comtours including the effect of space charge was derived from the field free of space charge.

讨论如何由无空间电荷存在的场求空间电荷作用下电子注的包迹。

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To investigate the parameters of parallel cut blast without empty holes, an advanced numerical method is used to study the explosion effect of charge in hole perpendicular to a free surface.

为了考查无空孔直眼掏槽爆破参数，采用数值模拟方法研究单自由面垂直炮孔的爆炸作用问题。

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In this paper, a new scheme of finite element method for solving the axisymmetric electrostatic fields is presented to determine the normal intensities on the boundaries of the charge-free regions.

本文提出一种有限元法的新方案，用于求解轴对称静电场的无源场域中的边界法向场强。

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