| 释义 |
atomic mass əˌtɒmɪkˈmæs Ｓ短语⁴⁶³⁶⁶
基本英英近义反义例句Thesaurus例句
原子量
化学基本概念
Noun:
chemistry the mass of an atom of a chemical element expressed in atomic mass units近义词 atomic weight原子量relative atomic mass〈化〉原子量…
Early chemists had to use indirect means for determining theatomic massof an element.早先的化学家只得用间接的方法来确定某种元素的原子质量。as in.mass number
同义词 atomic number,atomic volume,atomic weight,nucleon number
mass numbernoun protons and neutrons
atomic number,atomic volume,atomic weight,nucleon number The average mass of an atom of an element, usually expressed relative to the mass of carbon12, which is assigned12 atomic mass units.
一种元素中原子的平均重量，通常相对碳12的重量来表示，碳12的重量定为十二个原子量单位。 odict.net
The average mass of an atom of an element, usually expressed relative to the mass of carbon2, which is assigned2 atomic mass units.
一种元素中原子的平均重量，通常相对碳2的重量来表示，碳2的重量定为十二个原子量单位。 poptool
A naturally radioactive carbon isotope with atomic mass4 and half-life5,780 years, used in determining the age of ancient organic, geologic, or archaeological specimens.
一种碳的天然放射性同位素，原子量为4，半衰期为5，780年，用于测定古代生物标本，地质标本或考古遗迹的标本的年代。 poptool
However, the atomic mass loss in nuclear fusion is slightly more than that of nuclear fission.
然而，核聚变中的原子量亏损比核裂变中的稍多一些。 suiniyi |