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本文用解析法确定ｆ△、ｆＰ、ｆα。分析了螺纹作用中径对中径的包容情况。使作用中径的分别计算与综合计算趋向一致。
In this paper, the analytical method to determine f △, fP, fα. Analysis of the diameter of the thread diameter on the inclusive behavior. So that the calculation of the role of path diameter and integrated computing trends.