单词:roughening
音标:['rʌfәniŋ] ;
粗加工, 粗糙法
v make rough or rougher
词型变化:名词复数形式 : roughenings
roughening的用法和样例:
例句
- Before painting the wood, roughen the surface with sandpaper.油漆木器前,先用砂低把表面磨毛糙。
- Roughen the surface before applying the paint.先把表面弄毛糙再涂颜料。