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  1. Ore.

    • abbr
      Oregon.
    • 相關詞
    • n.
      a naturally occurring solid material from which a metal or valuable mineral can be extracted ... a good deposit of lead-bearing ores the mine's reserves of ore

    Oxford Dictionary

    • n.
      a naturally occurring solid material from which a metal or valuable mineral can be profitably ... a good deposit of lead-bearing ores the mine's reserves of ore

    Oxford American Dictionary

    • abbr
      operational research.

    Oxford American Dictionary

    • abbr
      operational research.

    Oxford Dictionary

    • n.
      a rock or mineral from which iron can be profitably extracted.

    Oxford American Dictionary

    • ph.
      another name for the Erzgebirge

    Oxford Dictionary

    • n.
      another term for bornite

    Oxford Dictionary

    • n.
      a rock or mineral from which iron can be profitably extracted.

    Oxford Dictionary

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    • abbr
      Oregon.

    Oxford American Dictionary