valence是什么意思？

valence

英['veɪləns] 美['veɪləns]

• n. （化合）价，原子价，（心理）效价；

例句

• 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.
• Hydrogen is a one - valence element. 氢是一价的元素.
• Purpose : To study clinical diagnosis valence of bone biopsy of osteopathy and bone tumor under CT - guidance. 目的: 探讨CT引导下骨介入性诊断骨病、骨肿瘤的临床价值.
• Based on the configuration of variables they were interpreted as valence ( hedonic tone ) and activation. 建立在变量的结构上,它们被诠释为情感效价 ( 快乐基调 ) 和激活.
• 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.
• Evaluate the evenhanded affirms valence can reflect investment both sides more, justice. 评估确认价更能体现投资双方的公允 、 公正.
• The valence atom of an alkali - metal atom has two states. 碱金属原子的价原子具有两种能态.
• Valence is a sleepy little town just south of Lyon. 瓦朗斯是里昂南面一座寂静的小镇。

英英词典释义

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