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；
A virtual file for smoothing digital profile of wheel tread of railway vehicles is created based on MATLAB and specific roughness calculation method.
应用Matlab平台开发了粗糙度算法和数字化锉刀软件，实现了对轨道车辆车轮踏面外形的数字化虚拟打磨。
The structure, material, specific surface area and roughness of bio media are the important factors influencing the efficiency of in situ bio film technique.
填料的结构、材质、比表面积及粗糙度等是影响原位生物膜技术的关键因素。
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