roughen edges粗糙边缘;粗拙边缘;边缘粗糙化;粗糙边沿
Chemical Roughen化学粗化
surface roughen表面粗糙化处理
coarsen roughen变粗糙
machining roughen机械加工粗化
electrochemical roughen电化学粗糙
roughen n变得粗糙
roughen valley糙底
sand-blasting roughen喷砂粗化
V-T（及物动词） If something has been roughened, its surface has become less smooth. 使···变粗糙 [usu passive]
...complexions that have been roughened by long periods in the hot sun.
...经长时间日晒变粗糙了的面容。