steel emery

基本解释

• [冶] 鋼砂

英汉例句

雙語例句

• As jade is of hard texture, carving is not done with a steel graver, but with emery by way of grinding.
  由於玉質地很硬，不能用鋼質雕刻刀雕刻，用磨光的金剛砂來雕刻。
  blog.sina.com.cn

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专业释义

能源科學技術

• 鋼砂