cylindrical equation的用法和樣例：
例句
- Based on the machining theories and gear profile equation, using computer graphics, the article builds the surface model and solid model of honner.
本文根據珩輪的加工原理和齒面方程，利用計算機圖形學方法，分別建立了珩輪的表面模型和實體模型。 - The helicoid equation of contacting surface befween workpiece and die in the process of cross wedge roiling was proposed in this paper.
建立了楔橫軋變形工件與模具接觸面的旋轉螺旋面方程。
