词a hard gray lustrous metallic element that is highly corrosion-resistant; occurs in niobite and fergusonite and tantalite.
一种坚硬有光泽的灰色金属元素，抗腐蚀性极
，见于铌铁
、褐钇铌和钽铁中。
,褐钇钽a hard gray lustrous metallic element that is highly corrosion-resistant; occurs in niobite and fergusonite and tantalite.
一种坚硬有光泽的灰色金属元素，抗腐蚀性极，见于铌铁、褐钇铌和钽铁中。
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