valence characterized by the sharing of electrons in a chemical compound; the number of pairs of electrons an atom can share
例句
The relationship between bond valence and bond covalency has been investigated by a semiempirical method. 用一种半经验方法研究了固体材料中键电荷与键共价性的关系。
Keywords: chemical bond theory of complex crystals, covalency, ionicity, Mossbauer spectroscopy, hexagonal ferrite, superconductor, hardness. 关键词 ：复杂晶体化学键理论，共价性，离子性，穆斯堡尔谱，六角铁氧体，超导体，硬度。
Coval of Harvard Business School examine the mutual fund industry to determine why people would prefer to invest in stocks of companies located near them. Coval考察了共同基金市场，并试图解释为什么投资者更青睐本地公司的股票。
This model is also extended to predict the structural changes in nc-GaN with different covalency from BaTiO3, which promises the universality of this model in covalent-ionic nanocrystals. 说明了该模型在共价-离子晶体纳米材料体系中的普适性。
The Stabilization of the mixed species is considerably influenced by statistical effect, electrostatic effect, steric effect, cooprerative effect and covalency of the coordination bond. 混合络合物的稳定性是由如下因素所决定的,即:统计效应,静电效应,共价键性,立体效应和配体的合作效应。
