“radioactive background”的概念、定义、翻译、参考文献-科学参考

单词	radioactive background
释义	radioactive background Encyclopedia 理学原子核释 radioactive background放射性本底自然环境中的宇宙射线和天然放射性物质构成的辐射总称。又称天然放射性本底。 Chemistry ＞放射化学与辐射化学＞基础放射化学＞释义 radioactive background放射性本底
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