首页 汉语词典 英英词典
the relative molecular mass of a molecule, equal to the sum of the relative atomic masses (atomic weights) of the constituent atoms.
molecular weight.
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。