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scandium
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化学元素,元素符号Sc,原子序数21,原子量44.955908(5),属周期系ⅢB族,稀土元素。
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全称:scandium。缩写:Sc
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>无机化学>无机化学基本概念与无机化合物>释义
scandium
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ultrasonic machining
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