俄语

精炼 提纯 提炼 精制 , -рую, -руешь; -рован-ный〔完，未〕что〈专〉

  1. 把…加以精制(或提炼)
    ～ медь把铜加以精炼
  2. 精制成方糖
    ～ са́хар把砂糖精制成方糖.
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