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从现有公式出发,以极大极小的数学概念作为工具,推导出围成尖底直动从动件盘形凸轮回转中心选择区域的二条直线方程式。
Based on the existing formulas, the mathematical equations of maximal and minimum are taken as the tools to deduce the two straight line equations of the selected area of the center of rotation of the disc cam encircled by the sharp bottom driven follower.