valence中文什么意思

n.
【化学】(化合)价；(原子)价；【生物学】效价。n.
＝ valance.

• valence valence:    离子价
• absolute valence:    绝对价, 最高价
• active valence:    有效化合价

例句与用法

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1. The secondary valence is directed toward fixed positions in space .
   副介指向空间的确定位置。
2. Halogen atoms contain seven electrons in their valence shell .
   卤原子在它们的介电子层含有七个电子。
3. Every element tends to satisfy both its primary and secondary valence .
   每一元素倾向于既满足它的主价又要满足它的副价。
4. When it is in this condition, the atom is said to be in a valence state .
   当它处于这种状态时，这个原子就可说是处于价态。
5. In the valence bond treatment, explicit recourse is made to classical, localized bond structure .
   价键法明显依赖经典的定域结构。

英文释义

名词

1. (chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)
   同义词：valency
2. (biology) a relative capacity to unite or react or interact as with antigens or a biological substrate
   同义词：valency