英语词汇“packing fraction”的中英文读音、翻译、固定搭配用法、短语词组及例句-英汉汉英双解词典-四方网

单词	packing fraction
释义	packing fractionn.Physics（名词）【物理学】 The quotient of the algebraic difference between the isotopic mass and the mass number of a nuclide, divided by its mass number, often interpreted as a measure of stability.敛集率，聚集率：核素的同位素量和质量数之间的差额被它的质量数除所得到的商，通常被看作是测量稳定性的标准
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