查询词典 valence

By Obtaining the absorption spectra of the metalloporphyrins at different potentials in deoxygenated solution and then following the spectra changes while the solution was being oxygenated, we were able to reveal the interaction of metalloporphyrins with O_2 at different valence states.

要了解金属大环化合物氧化还原型催化剂作用机制的一个重要问题，即是查明中心金属离子在什么价态下能与o：作用，以及相应价态的氧化还原电位。多数作者认为大环化合物中心金属离子为正二价M。

The results indicate that the relative atom content of Nd islow contrasted to that of Fe, which results from the weak competitive reaction ofNdCl〓 because of the strong bulk effects. The results of x ray photoelectronspectroscopy reveal that other valence of Fe could be in NdCl〓-FeCl〓-GIC.It is considered as the result of the charge shift between FeCl〓,〓 and graphitein intercalating process. Structural model of RECGIC was supplemented after thinking of the chargeshift between the intercalates and graphite. The characteristic layer distance, I〓, ofstage-1 RECGIC were calculated by the model.

利用能谱分析测定了NdCl〓-FeCl〓-GIC中插入剂的含量，结果表明， Nd的相对含量低于Fe的相对含量，这是因为NdCl〓的空间效应较大，而致使其竞争插入反应处于劣势的缘故。X光电子能谱研究表明，Fe可能有其它价态存在，这是由于在插入反应过程中，FeCl〓、NdCl〓以及石墨间发生电荷转移等作用的结果。

The results show that the Co ions are in the +2 valence present in the LiNbO_(3)crystal and located within the distorted oxygen octahedrons,and their concentration decreased gradually along the growth direction.

研究表明：Co离子位于LiNbO3晶体的崎变的氧八面体中，呈现+2价，沿着生长方向Co2+在晶体中的浓度逐渐减少。

The absorption results indicated that the Co ions presented +2 valence in crystal and located within the distorted oxygen octahedrons.

从吸收特性表明，Co离子掺杂于畸变的氧八面体中，呈现+2价态，并且沿着晶体生长方向浓度逐渐减少，Co2+在LiNbO3晶体中的有效分凝系数大于1。

Valence bond theory is paralleling with the MO theory in the history.

价键理论在历史上是与分子轨道理论平行发展起来的。

The XPS results show that the amount of low valence molybdenum and S(superscript 2-) increases with increase of the content of K in sulfured catalyst, and(superscript 2-) is suppressed. It is found that keeping the ratio Mo(superscript 4++Mo(superscript 5+)/Mo(superscript 6+) at 0.8~1 level and remaining more S(superscript 2-) species on the catalyst are in favor of the improvement of the catalytic activity at low temperature.

XPS表征显示，硫化态催化剂随着钾添加量的增加，低价态钼和S(上标 2-)增加，(上标 2-)受抑制，Mo(上标 4++Mo(上标 5+)/Mo(上标 6+)质量比为0.8~1和较多的S(上标 2-)物种有利于提高催化剂的低温活性。

The research of the digital audio-frequency technique combining the embedded system has the extensive foreground, The digital audio-frequency equipments based on the embedded system have be attended all over the world because of its high ratio of sexual valence , the quickly development speed ,and etc.

结合嵌入式系统的数字音频技术研究有着广阔的前景，基于嵌入式的数字音频设备以其高性价比、日新月异的发展速度等优点受到世界各国的广泛关注，本文结合市场发展需要，提出了一个比较优化的解决方案，并从理论和实践两方面对该方案进行了分析和设计。

The outer valence shell binding energy spectrum of benzyl alcohol was also obtained.

实验在非共面对称几何条件下完成，入射电子的能量为2400 eV加结合能。

It was shown by further research that the formed tungsten oxide had an obvious layer-like structure, where from outer to inner layer the valence of tungsten increased and the reduction degree decreased. The carbonization of W depended on the replacement of W atom at the center of the body-centered cubic by C atom and the minor adjustment of C atom position and the lattice parameters.

深入研究表明，氧化钨碳还原颗粒具有明显的层状结构，自外到内钨的化合价递增，还原程度降低；钨的碳化是碳原子替换体心立方钨晶胞的中心钨原子，然后碳原子转换到钨原子点阵间隙再经晶胞常数微调而形成。

It can be proposed that the charge compensation effects make Co2+ and Ti4+ ions in raw material co-occupy uniformly B site in perovskite both as the forms of +3 valence, which is responsible for the lower temperature synthesis.

这是由于原料中的Co2+和Ti4+离子通过电荷补偿作用使产物B位的两种金属均以+3价氧化态分布所致。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷