Columbite-tantalite
volume
British pronunciation/kˈɒləmbˌaɪttˈantəlˌaɪt/
American pronunciation/kˈɑːləmbˌaɪttˈæntəlˌaɪt/

"columbite-tantalite"の定義と意味

Columbite-tantalite
01

a valuable black mineral combining niobite and tantalite; used in cell phones and computer chips

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