plane graph造句

1、A plane graph together with the set of faces it determines is called a plane map.
一个平面图与它所确定的面的集的总体称为一个平面地图。

2、In this paper, we gave the optimization method when drawing the plane graph on the computer screen.
本文给出了在计算机屏幕上绘制平面图形时，提高其绘制效果的优化方法。

3、Clearly each plane graph has exactly one unbounded face.
显然，每个平面图都有一个 * 面。