具有对称面的斜椭圆锥管三通计算机辅助设计

Three-way CAD of skewed elliptic conic tube with symmetric plane

提供了两种斜椭圆锥管展开母线长度的计算公式及公式中各个参数的计算公式，介绍了实现计算机辅助设计的基本方法。

In this paper, the formulas of the length of developed element of two kinds of skewed el- liptic conic tube are given, the formulas of all parameters of the prior formulas are given too. The based methods of implementation CAD are introduced.