名詞 dermabrasion:

1. removal of scars or tattoos by anesthetizing the skin surface and then sanding or scraping off some of the outer skin layer

der.ma.bra.sion

n.（名詞）
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：通過細(xì)沙紙或金屬刷磨擦皮膚表面除去皮膚缺陷（例如疤痕）的一種外科治療過程