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niobium
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化学元素,元素符号Nb,原子序数41,原子量92.9064,属周期系VB族。
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niobium
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化学元素,元素符号Nb,原子序数41,原子量92.90637(2),属周期系ⅤB族。
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全称:niobium。缩写:Nb
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>无机化学>无机化学基本概念与无机化合物>释义
niobium
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