对螺旋面的成形机理进行了分析。
Firstly, this paper researched the forming mechanism of the helicoidal surface.
介绍了螺旋面的形成和展开方法。
The forming and spreading methods of the spiral surface are introduced.
螺旋面的形式有实体螺旋（S制法）和带式螺旋（D制法）两种。
Helicoid spiral form of entity (S method) and the spiral belt (D method) two.
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