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冷却剂材料
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sodium
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化学元素。元素符号Na,原子序数11,原子量22.98976928,属周期系IA族,碱金属。
理学
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释
sodium
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化学元素,元素符号Na,原子序数11,原子量22.98976928(2),属周期系ⅠA族,碱金属。
Astronomy
全称:sodium。缩写:Na
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Chemistry
>无机化学>无机化学基本概念与无机化合物>释义
sodium
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