rough grindingrough lapping粗: wide; thick研磨: grind; pestle abrade; polish粗研磨剂: coarse abrasive粗研: spall粗研磨剂(切片机刀磨刀用): coarse abrasive下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:粗研磨,即可在微信中查询翻译