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

单词	radioactive standard source
释义	radioactive standard source Encyclopedia 理学原子核释 radioactive standard source放射性标准源性质和活度在某一确定的时间内均为已知，能作为对比标准用的放射性核素，也可作为放射性基准的放射源。又称标准（放射）源。 Chemistry ＞放射化学与辐射化学＞基础放射化学＞释义 radioactive standard source放射性标准源
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