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单词 columbite-tantalite
释义 Noun: columbite-tantalite
  1. A valuable black mineral combining niobite and tantalite; used in cell phones and computer chips
    - coltan

Derived forms: columbite-tantalites

Type of: mineral

Encyclopedia: Columbite-tantalite

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更新时间:2024/12/21 17:20:34