英语词汇relative atomic mass怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	relative atomic mass
释义	relative atomic massn. the ratio of the average mass of one atom of an element to one-twelfth of the mass of an atom of carbon-12 Also called 亦称作 atomic weight相对原子量
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