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理学
氩
释
argon
氩
化学元素,元素符号Ar,原子序数18,原子量39.948(1),属周期系零族元素,稀有气体。
Physics
argon
氩
18Ar
{化}
Astronomy
argon
缩写:Ar。氩
Chemistry
>无机化学>无机化学基本概念与无机化合物>释义
argon
氩
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climatic condition in mine
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climatological statistical diagnosis
climatological statistics
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更新时间:2025/11/28 21:15:11