equation of structural planes的用法和样例：
例句
- The helicoid equation of contacting surface befween workpiece and die in the process of cross wedge roiling was proposed in this paper.
建立了楔横轧变形工件与模具接触面的旋转螺旋面方程。 - Based on the machining theories and gear profile equation, using computer graphics, the article builds the surface model and solid model of honner.
本文根据珩轮的加工原理和齿面方程，利用计算机图形学方法，分别建立了珩轮的表面模型和实体模型。
