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  1. noble metal

    • IPA[ˈnōbəl ˈmedl]


    • n.
      a metal (e.g. gold, silver, or platinum) that resists chemical action, does not corrode, and is not easily attacked by acids.
    • noun: noble metal, plural noun: noble metals

  2. 知識+

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      一個一個翻譯出來好像有點誇張教你釣魚的方法這樣以後也受用無窮例:percent yield = 百分產率  theoretical yield = 理論產量  limiting reactant(reagent) = 限量反應物加油 共勉之 2006-09-25 08:46:43 補充: empirical formula = 實驗式molecular...

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