The atomic weight of an element or the molecular weight of a compound may be specified as amu/atom (molecule) or mass/mole of material.是什么意思_The atomic weight of an element or the molecular weight of a compound may be specified as amu/atom (molecule) or mass/mole of material.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句