dry grinding干: trunk; main part研磨: grind; pestle abrade; polish的: 4次方是 The fourth power of 2 i ...研磨的: abrasive; lapped; molar研磨剂(料)；研磨的: 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:干研磨的，即可在微信中查询翻译
