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单词 valency
释义

valence

美 ['veɪləns]
英 ['veɪləns]
  • n.价;原子价;化合价;组配数限
  • 网络效价;化合价价;结合价
复数:valences  
valency
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n.
1.
价;化合价;原子价a measurement of the power of an atom to combine with others, by the number of hydrogen atoms it can combine with or displace
Carbon has a valency of 4.
碳的化合价是 4 价。
2.
组配数限,配价(一个词,尤指动词,在句子中结合的语法成分的数目)the number of grammatical elements that a word, especially a verb, combines with in a sentence
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