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首页 - 英汉词典 - M字开头的单词或词组 - mass number

英语解释

mass number

汉语翻译

【化】质量数
【医】 [原子]质量数

mass number英语解释

名词 mass number:

the sum of the number of neutrons and protons in an atomic nucleus
同义词：nucleon number

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