探讨了具有不同表面粗糙度的工具和相对高度毛坯，在变形时单位压力的变化情况；
The change in the specific roll pressure of workblanks is investigated as the tool surface roughness and the relative height of workblanks are changed.
探讨了具有不同表面粗糙度的工具和相对高度毛坯，在变形时单位压力的变化情况；
The change in the specific roll pressure of workblanks is investigated as the tool surface roughness and the relative height of workblanks are changed.
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