切削深度d是未加工面与已加工面之间的垂直距离。
Depth of cut, d, is the normal distance between the unmachined surface and the machined surface.
垂直于铣削加工面各点的显微硬度，随着距切削表面距离的增大而逐渐降低，且趋于平缓；
The microhardness of various point of milling working surface gradually reduces with the increase of distance of cutting surface, and then remains flat.
对欲行个体化角膜切削的近视及近视散光患者，保留较小的垂直彗差而完全矫正球差可能有助于视觉质量的提高。
Maintaining smaller vertical primary coma and correcting spherical aberration completely for myopia and myopic astigmatism may be the best choice for customized cornea laser ablation surgery.
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