表面阶梯 meaning in English

surface step

The surface ladder effect produced by prototyping principle is analyzed , and the calculation method of the part surface roughness is presented . the selecting method of slice thickness and sintering layer thickness when slicing the cad model and sintering is presented
分析了由于成型原理所产生的制件表面阶梯效应，提出了制件表面粗糙度的计算方法，给出了cad模型切片时，切片厚度的选取方法。