英语词汇“helium isotope ratio”的中英文释义、用法、翻译及短语词组-英汉翻译词典

单词	helium isotope ratio
释义	helium isotope ratio 英?[?hi:li:?m ?a?s??t??p ?rei?i?u] 美?[?hili?m ?a?s??top ?re?o] 释义氦同位素比率行业词典石油氦同位素比率???
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helium isotope ratio