共价键

At last, adsorbent and covalent Ag nanoparticles modified electrodes were prepared by adsorbent and covalent method, respectively. The electrochemical behaviours of SCN-, brilliant cresyl blue and nicotinamide adenine dinucleotide on modified electrode were studied by Cyclic voltammetry, differential pulse voltammograms and electrochemical impedance spectroscopy.

最后，用吸附法和共价键合法制备了吸附型和共价自组装银纳米修饰电极，采用循环伏安法、示差脉冲伏安法和交流阻抗谱等电化学方法研究了SCN-、灿烂甲酚蓝和还原型烟酰胺腺嘌呤二核苷酸的电化学行为。

After UV irradiation and the decomposition of diazonium group, the films' linkage between layers was converted to covalent bond and the stability of the films was improved greatly.

根据重氮基团还可以与聚负离子形成静电作用力的特点，分别在水和有机介质中，自组装形成了多层复合超薄膜，膜的层间作用力既有离子键又含有氢键，并且在紫外光照射下，两种作用力都转化为稳定的共价键。

Produced silicon carbide composite Deoxidizer near ten series of products, including specifications, is based on carbon and silicon covalent bond mainly a combination of compounds, non-oxide material in the smelting converter part and the part of low carbon steel alloy the process of substitution of steel by carbon ferrosilicon and carried out on molten steel deoxidation and carbon use.

公司生产的复合型碳化硅脱氧剂系列产品包括近十个规格，是以碳和硅为共价键为主结合而成的化合物，属非氧化物原料在转炉冶炼普碳钢部分及部分低合金钢过程中替代硅铁和增碳剂对钢水进行脱氧和增碳使用。

On the one hand,Magnetic Polymer Microsphere could covalent active materials—enzymes,cells and antibodies;on the other hand,they could show strong magnetic responsibility for their directional movement in the magnetic field.

一方面磁性聚合物微球可通过共价键来结合酶、细胞和抗体等生物活性物质；另一方面因其具有"在外界磁场存在下能定向运动"这一特殊性能，可对外加磁场表现出强烈的磁响应性，因此它被用作酶、细胞、药物等的载体，广泛地应用到生物医学、细胞学和生物工程等领域。

In this study, the octahedron(111), cube(100) and dodecahedron(110) surfaces of diamond have been investigated by quantum chemistry calculations.

对比数据可以知道，在金刚石八面体{111}面上单原子能量最大，原子间所形成的共价键键能最强，所以在该面上物理化学性质最为稳定。

Another is the Lewis definition (also 1923): An acid is a chemical that can accept an electron pair from a base, which they share to form a covalent bond.

另一种理论是路易斯理论(也是在1923年发表)：酸就是能由碱接受一个电子对形成一个共价键的化学物质。

Bond'.'' consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent ''.

一种化学键：由两个负电原子及其间的氢原子组成，其中一边是共价键，另一边是离子键。

Atom'.'' between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond.

负电'。''''。'原子'。''及其间的氢原子组成，其中一边是共价键，另一边是离子键。

A chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond .

一种化学键：由两个负电原子及其间的氢原子组成，其中一边是共价键，另一边是离子键。

A large number of bond-type complexes, as long as the hydrogen of the molecules covalently coupled to the molecular approach in an electronegative atom up, that constitutes a hydrogen bond, there are intramolecular hydrogen bonds and intermolecular hydrogen bonds of the points, will affect the formation of complex reaction carried out, such as in solution adding dioxa cyclohexane, or tetrahydrofuran, will reduce the alkylation reaction rate.

氢键型络合物为数众多，只要含氢的分子以共价键方式耦合到分子中一个电负性原子上去，即构成氢键，有分子内氢键和分子间氢键之分，络合物的形成将会影响反应的进行，如在溶液中加入二氧杂环己烷或四氢呋喃，都会降低烷基化反应速率。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。