查询词典 covalent bond

For boiling, all the covalent bond between the carbon atom have to be broken, therefore, it requires high temperture to provide large amount of energy to it.

要使石墨达到沸腾，必须要将所有的共价都打碎。所以，需要很高的温度还有能量。

Use modern times to explain a covalent bond coming price key theory.

用现代价键理论来说明共价键。

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。

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。

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。

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。

Gold nanoparticles was self-assembled onto a platinum electrode to form a negatively charged surface, and cationic dye-thionine was linked by Au—S and Au—N covalent bond and electrostatic adsorption as an electron transfer mediator.

在铂电极上自组装一层纳米金，构建负电荷的界面，然后通过金-硫、金-氮共价键合作用和静电吸附作用自组装一层阳离子电子媒介体硫堇。

Ca plays the role of connections between CoO2 and Ca2CoO3 layers, decrease ionic and covalent bond strength, and improving the thermoelectric property.

Ca连接了CoO2和Ca2CoO3层的相互作用，降低了Co-O共价键和离子键强度，改善了热电性能。

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。