【摘要】 本文内容由三部分组成。首先,文中着重分析由不重合平面场的异素对应构成二级曲面的问题;其次,文中讨论了由不重合平面场的异素对应构成的二级曲面的分类情况;最后,文中给出了绘制由不重合平面场的异素对应构成的二级曲面的投影轮廓线的方法。更多还原

【Abstract】 There are three parts in the paper.First,the paper gives a detail analysis on the quadric surface composed by correlation in two projective planes.Secondly,it discusses the classification of the quadric surfaces.Finally,it gives a method of construct projection outline of the quadric surface.更多还原