“isotope abundance ratio”的概念、定义、翻译、参考文献-科学参考

单词	isotope abundance ratio
释义	isotope abundance ratio Encyclopedia 理学火花放电光源释 isotope abundance ratio同位素丰度比某两种同位素的丰度值之比称为同位素丰度比。简称同位素比。具有相同质子数，不同中子数的同一元素的不同核素互为同位素。
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