对一段语音进行端点检测并对检测的语音画出方框图，不同于一般只画竖线-Endpoint detection of a voice to draw the block diagram and detection of voice is different from the vertical line is generally drawn

用矩阵法解传输线ribbon line （就是外皮矩形 中间的芯是一个竖线的 transmission line）切面上的电势分布 并计算传输线的电感电容- program based on MATLAB to simulate the 2D voltage distribution in a ribbon line