摘要
分析了曲面截交线、相贯线求解过程中最常用的“辅助平面法”和“辅助球面法”的优点及局限性，在此基础上，阐述了“辅助斜投影法”的基本原理，并通过实体例子说明，这种方法对于常用方法不能求解或求解困难的问题，有着相当强的适用性和简捷性。
By analyzing the advantages and Limitations of'auxiuiary plane method' and 'auxilliary sphere method' which are most frequently used in the solver of curve transversal and intersecting line,this paper gives an auount of the basic principle of 'auxilliary projection'.The examples in the paper show that this method is quite adaptable,simple and proutical.It is especially adaptable to the problems which cannot be solved with common solvers.
关键词
截交线
相贯线
斜投影法
辅助平面法
曲面
transversal
intersecting line
oblique pnjection
auxilliary plane method
auxillary sphere method
