If using the ICUMSA tables, he or she would report in mass fraction.
如果使用国际糖分析统一方法委员会表,他或她将以质量分数报告。
Roughly equal in mass to that of the proton.
大概等于质子的质量。
How could one explain this difference in mass?
那么要如何解释质量上的这个差异呢?
The difference in speed also means a difference in mass of 50%.
VOA: special.2009.01.20
Roughly equal in mass to that of the proton.
大概等于质子的质量。
It is a double column, You can see, it starts with hydrogen and goes to mercury in ascending order of atomic mass.
双纵栏,你们看到,从氢开始,然后到水银,按原子质量的升序排列。
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