查询词典 covalent

Form three bonds by sharing and a fourth using the lone pair in a dative covalent bond.

在配位共价键中形成了3 个共用的键和第4 个孤对电子的键。

Nearest M—C bond. Comparing the covalent electron density of MC with NiAl at different crystal planes, it is found that the electron density along the interface (110)_//(100)_ ...

通过对NiAl和MC的不同晶面的共价电子密度的分析发现：(110 ) NiAl和(10 0 ) MC在一级近似范围内基本上保持连续；采取适当的制备工艺，使复合材料中存在尽可能多的(110 ) NiAl//(10 0 ) MC，有可能使这种复合材料具有更优异的力学性能

A ligand is particle with a lone pair which forms a dative covalent bond to the central particle.

changes。配体具有不同的尺寸这意味着可和中心正离子配对的数目不同。

In this dissertation, a series of ultra-thin films based on photosensitive diazoresin were fabricated through layer-by-layer self-assembly technique, and the films could be attached by covalent bond after the decomposition of diazonium group between layers under UV irradiation.

本论文利用层层自组装技术，制备了基于光敏性重氮树脂的系列超薄膜，这种感光性组装膜在紫外光照射下能够形成共价键联结，本论文着重对这些共价键联结超薄膜的功能特性进行了研究，主要结果如下

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。

After UV irradiation and the decomposition of diazium group, the linage of the films will be converted from ionic bond to covalent bond, result in the films could resist the etching of polar solvents and strong electrolyte.

利用传统的三电极光电转换装置，以0.5M KCl溶液为支持电解质，测试了含聚苯胺衍生物超薄膜的光电转换性能，并考察了影响光电流产生的影响因素。

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。

Thus, it is likely that shedding is mediated both by proteases and by disassociation of the non-covalent interaction between the α- and β-subunits.

研究人员在胃部发现一种命名为MUC1的蛋白质，该蛋白质能够对幽门螺旋杆菌的起到防御作用。

Covalent functionalization is one of the most effective ways to improve their solubility and dispersion.

对CNTs进行共价修饰是改善其溶解性和分散性的有效方法之一。

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。