1)monad,一价元素2)univalent element,一价元素3)monovalent element,一价元素4)monad,单轴;一价元素5)single valence,一价6)cuprous salt,一价铜7)cuprous salt,一价铜盐8)PAB(pay as brel),一机一价9)same price for several lines,几线一价10)the same lowest price,统一价格
用法例句
We hold that the separable verbs are single valence verbs.