... 外径Diameter 螺距Picth 转速speed ...
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Twist picth 或选择采用扭转
picth diameter 节圆
circular picth error 周节误差
picth quadric 节距二次曲面
instability in picth 纵向不安定性
The equations of the cam's picth curve are derived on the basis of forming principle of conjugate profile.
对偏心轮式结构给出两种实现一分度的具体型式，并根据共轭齿廓形成原理推导了凸轮廓线方程。
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