摘要
通过对圆锥的各种截交线作解析的分析．进一步讨论圆锥各种截交线的投影特点，以及在任意圆锥上如何截切所需的截交线。
By eans of analysing intersector curves of a cone, the projection of the intersector curves of a cone and how to get a needed intersector curve curve from a cone were discussed in this paper.
