画法几何中平面法线作图法的应用

Applying of Drawing Method with PlaneNormal Line in Descriptive Geometry

本文讨论了平面法线的一些特性，利用这些特性可解决画法几何中有关平面问题中的所有作图，从而找到了另一种作图方法。

In this paper,some charaters of normal line of plane are discussed,they were used to solve all problems on plane descriptive in drawing geometry.Another drawing method was obtained.