三维结构配位聚合物的自聚焦或自散焦效应主要受中心金属离子价层电子构型的影响。

Three dimensional coordination polymers show self defocusing or self focusing effects depending on the valence shell structures of the central ions.

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采用比表面、孔结构、XRD和XPS等测试技术研究了催化剂的宏观结构、晶相组成、表面铁、钼离子价态和浓度。

The macrostructure, the composition of the crystal phase, the surface ion valency and concentration of the catalysts were investigated by BET, XRD and XPS techniques.

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该法根据八大离子的离子价摩尔浓度占总离子价摩尔浓度百分比的不同，分析百分比在时间或空间尺度上的差异来评价海水入侵，划分入侵程度。

By this method, the seawater intrusion degree can be classified according to the different ionic valence molar concentration percentage of eight ions in the total ionic valence molar concentration.

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I can then subsequently lose an electron from the lithium ion. Lithium ion loses an electron to become lithium 2plus.

然后我能在锂离子中，失去一个电子,锂离子失去一个电子,变为二价锂离子。

麻省理工公开课 - 固态化学导论课程节选

So we could think about comparing the potassium ion to a sodium ion. They have the same charge of plus one.

我们可以想象比较一下钾离子,与钠离子，它们都同样带有正一价的电荷。

麻省理工公开课 - 化学原理课程节选

So chlorine, if we talk about it in terms of electron affinity, we would be writing that we're actually gaining an electron here, and getting the ion, c l minus.

那么，氯，如果我们要讨论它的电子亲和能，我们会假设它真的得到了,一个电子而变成离子，负一价的氯。

麻省理工公开课 - 化学原理课程节选