英语词汇mass number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

短语

1
All the isotopes of a given element have the same number of protons, but differ in their number of neutrons, and hence in their atomic mass.
给定元素的所有同位素都含有相同的质子数，但它们的中子数不同，因此它们的原子质量也不同。
2
I had gained weight in the form of muscle mass, but thinking only of lowering the number on the scale, I altered my training program.
肌肉量增大，我的体重就增加了，但因为只想着降低体重称上的数字，我改变了训练计划。
3
The number of mass shooting in the US has quickly increased in recent years.
近年来，美国的大规模枪击事件迅速增加。

单词	mass number
释义	mass number 英/ ?m?s n?mb?(r) / 简明释义质量数：一个整数，近似表示同位素的质量，并指定核中核子的数量。网络释义短语 1 mass number 核质量数 ; 多数 2 atomic mass number 物原子质量数 3 odd mass number 奇质量数双语例句 1 All the isotopes of a given element have the same number of protons, but differ in their number of neutrons, and hence in their atomic mass. 给定元素的所有同位素都含有相同的质子数，但它们的中子数不同，因此它们的原子质量也不同。 2 I had gained weight in the form of muscle mass, but thinking only of lowering the number on the scale, I altered my training program. 肌肉量增大，我的体重就增加了，但因为只想着降低体重称上的数字，我改变了训练计划。 3 The number of mass shooting in the US has quickly increased in recent years. 近年来，美国的大规模枪击事件迅速增加。
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