1·The characteristic impedance of unscreened slab-line is obtained, based on the investigation of the properties of the equipotential line in vertical stripline.
本文通过保角变换研究了垂直带状线中等位线的特性，结果表明其中有一根非常近似于圆的等位线。
2·This software package can calculate electric field in different stress cone shape by finite element method, and can present following functions: drawing equipotential line;
开发的软件包对不同的应力锥形状下的场强采用有限元方法进行计算并提供以下功能：画出任意电位的等位线；