adj.單價(jià)的；僅能抵抗某種病菌的

A monovalent vaccine;a monovalent serum. 單抗原疫苗；單抗原血清

A sufficient concentration of monovalent ions, such as ??l, can bring about coagulation in this way. 足夠濃的一價(jià)離子象??l能夠以這種方法引起凝聚。

Halogen atoms contain seven electrons in their valence shell, and, consequently, are monovalent. 鹵原子在它們的價(jià)電子層含有七個(gè)電子，因此是一價(jià)的。

A monovalent radical,such as ethyl or propyl,having the general formula CnH2n+1. 烷基，烴基一種單價(jià)基，如乙烷基和丙基，分子式為CnH2n＋

A monovalent radical, such as ethyl or propyl, having the general formula CnH2n+1. 烷基，烴基一種單價(jià)基，如乙烷基和丙基，分子式為cnh2n＋1