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X-ray photoelectron spectroscopy was used to investigate the content and chemical valence of chromium element,and the content of compounds in chromate passive film formed on commercial tinplate via a cathodic electrolytical treatment.

用X射线光电子能谱(X-ray photoelectron spectroscopy，XPS)分析的方法，对铬酸盐钝化镀锡钢板的正常表面及缺陷点处铬元素的含量、价态以及由铬元素组成的化合物进行了研究。

A satisfactory result was obtained in synthesis that using the material of high reactivity and high valence such as PPh3I*. The research area of material in electrosynthesis has been extended.

本文还重点研究了非水体系中不含酸性氢原料(I_2)的电化学反应机理，提出以电化学反应活性强的高价氧化态物质(如PPh_3I~+)作为阴极反应原料，在合成中取得了满意的结果，拓展了非水介质配合物电化学合成原料的研究和应用范围。

The peaks at 389 and 430 nm and the broader absorption at 869 nm correspond to electronic transitions from valence band to polaron band characteristic of the doped emeraldine oxidation state of polyaniline.19 This is consistent with the green color observed in the product.

在389和430 nm波长处的峰值以及在869 nm波长处的较宽吸收，对应于聚苯胺的掺杂苯胺绿氧化状态从价带到极化子能带的电子跃迁特性。19 这与产物观察到的绿色相一致。

In Chapter 3, six mixed-valence or heteronuclear metal imidazolates have been synthesized and structurally characterized through introducing univalent metal ion into bivalent metal imidazolates, which give a rich topological chemistry including novel topological networks.

其中尤为突出的是混价铜咪唑配合物的控制合成，通过精确调节反应条件得到了混价比例不同的产物，其中一种呈现出新型的四连接网络的拓扑类型。

The results indicate that the anions of the heteropoly acid remain unchanged in mixed valence compound formation.

结果表明在反应过程中杂多阴离子发生了单电子还原反应，生成了混合价化合物。

What this also sees inaccessibly to Internet industry is gigantic endowment buy bring a favourable turn, this year on Feburary 1, the Yahoo to one of adversary gives out Microsoft buy want to make an appointment with, in day of valence general search that prepares to use 44.6 billion dollar and bursa of income of information portal Yahoo.

这也给互联网业界难得一见的巨资收购带来转机，今年2月1日，微软向对手之一的雅虎发出收购要约，准备用446亿美元的天价将搜索和资讯门户雅虎收入囊中。

In addition, these facial expressions activated the sublenticular substantia innominata, where signal increases were observed to both fearful and happy faces--suggesting a spatial dissociation of territories that respond to emotional valence versus salience or arousal value.

另外，这些脸部表情活化了豆状核下无名质，其中观察到对於恐惧的和愉快的脸孔，信号都有所增加——提示了一种区域的空间分离，这是对於情绪效价和突出或唤醒之价值的反应。

Furthermore, the changes of intrapair and interpair energies of valence electrons are very great in the different element-formed systems.

计算结果表明不同元素形成的HX(X=Li-F，HBe^+，HBe)体系，其价层电子对内、对间相关能的变化较大，它们之间存在着轨道差别，不宜将其相关贡献归为简单的常数。

The average valence of copper in high temperature superconductor was determined by double iodometric titration,then oxygen content also can be calculated.

双碘滴定法是通过定高温超导氧化物中铜的平均价态，计算出氧化物中氧含量的一种方法。

Two mixed-valence lacunary tungstodiphosphates with the lacuna located in "belt" and "cap" posi-tions were photosynthesized.

用光合成的方法得到了两个混合价的缺位磷钨杂多化合物，其缺位分别位于&带&和&帽&的位置。

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