relative atomic mass
短语[化] 相对原子质量
别名
RAM
释义与例句
n.
-
1.
The ratio of the average mass per atom of the naturally occurring form of an element to 1/12 of the mass of a carbon-12 atom. Symbol Aᵣ; abbreviation RAM or r.a.m. For elements with several isotopes, the most stable isotope is treated as the representative.
相对原子质量
化学 物理