removal of scars or tattoos by anesthetizing the skin surface and then sanding or scraping off some of the outer skin layer
dermabrasion详细解释
der.ma.bra.sion n.（名词）A surgical procedure designed to remove skin imperfections, such as scars, by abrading the surface of the skin with fine sandpaper or wire brushes.磨皮法：通过细沙纸或金属刷磨擦皮肤表面除去皮肤缺陷（例如疤痕）的一种外科治疗过程
