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氕
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氕
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理学
氕
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protium
氕
元素氢的一种稳定同位素,符号或。天然氢中99.9852%是氕。一般化学中H表示天然氢,在同位素化学中H代表氕。
Chemistry
>无机化学>无机化学基本概念与无机化合物>释义
protium
氕
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present
presentable category
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