英语语法分析

He then treated the evolute of a plane curve.

然后他讨论了平面曲线的渐屈线。

Technological innovation is a complicated system, and this system always evolute from inferior to upper.

技术创新是一个复杂的系统，而这个系统总是从低级向高级进化的。

Process of parametric modeling of bevel gear with standard evolute tooth on PC based CAD system is presented.

提出实体参数化逆向造型设计的方法，介绍应用该方法开发圆锥齿轮三维实体参数化造型设计系统的过程。