利用虚边界元方法，开发了强流电子枪电子轨迹模拟程序VBGUN。
A electron trace modeling program, VBGUN has been finished by VBEM.
介绍了自主研制的三维离散元法分析软件的结构、主要功能及关键技术的实现方法，包括提出的实边界和虚边界的概念等。
This paper introduces the framework, function of the software and the key techniques to realize the software, including actual and virtual boundaries were presented.
样条虚边界元法是针对传统间接奇异边界元法存在的问题而提出的一种半解析半数值方法。
The spline fictitious boundary element method (SFBEM) is a modified method to the conventional indirect singular boundary element method.
应用推荐