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理学
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lanthanum
镧
化学元素,元素符号La,原子序数57,原子量138.90547(7),属周期系第ⅢB族,稀土元素,镧系元素。
Astronomy
全称:lanthanum。缩写:La
镧
Chemistry
>无机化学>无机化学基本概念与无机化合物>释义
lanthanum
镧
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