水的化学分子式是H2O.The chemical formula for water is H 2 O.测得的准确分子量与具体的分子式完全吻合.The precise molecular weight that is measured can be uniquely associated with a specific moleculer formular.仅从分子式, 我们就能推断分子中的 “ 不饱和度 ”.From the mo...

“分子式”的英语可以翻译为：[化] molecular formula，structural formula ...