形成化学键的现象；化合价
valencies — plural of valency
形成化学键的现象；化合价；(生物学)与抗原或生物底物结合、反应或相互作用的相对能力；(化学)原子或基团的性质；其化合能力以氢原子数(或等量)表示；[医] 效价; 价(化合价
形成化学键的现象；化合价
the phenomenon of forming chemical bonds
(生物学)与抗原或生物底物结合、反应或相互作用的相对能力
(biology) a relative capacity to unite or react or interact as with antigens or a biological substrate
(化学)原子或基团的性质；其化合能力以氢原子数(或等量)表示
(chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)
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