英语词汇“mass number”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	mass number
释义	mass numberˈmass ˌnumber noun [countable] science, physics the total number of protons and neutrons in the nucleus (=central part) of an atom
随便看	barbiturate bar chart bar code bard Bardeen, John bare bareback bare-bones bare bones barefaced barefoot barehanded bareheaded barelegged barely bareness Barents Sea, the barf barfly barfy bargain bargain basement bargainer bargaining bargaining chip

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