共价键
英英释义
noun
- a chemical bond that involves sharing a pair of electrons between atoms in a molecule
- The ability of an atom to attract electrons, and in particular, in a covalent bond.
原子对电子的吸引能力，特别是在共价键中。 - Preparation of Supported Acidic Ionic Liquid by Covalent Bond Grafting and Its Catalysis in Synthesis of n-Butyl Acetate
键合接枝法制备固载酸性离子液体及其催化合成醋酸丁酯 - Further study is needed before the origin of the covalent bond can be considered a settled question.
需进一步深入研究方能解决共价键的起源问题。 - The atom that contributes no electrons to a covalent bond.
受体没有给共价键提供电子的原子。 - SiC is combined by and Si by covalent bond, Which is a kind of non-oxide materials.
碳化硅是由碳和硅以共价键为主结合而成的化合物，属非氧化物材料。 - Olefin ( or alkene) Any unsaturated hydrocarbon containing one or more pairs of carbon atoms linked by a double bond ( see covalent bond, saturation).
含有一对或多对由双键连接的碳原子的一类不饱和烃。 - OK, he also, let me see, he also, lastly, to close us out, he also developed an analytical expression for the energy of that covalent bond, which is really what we want.
好的，他也，让我看看，他也，最终接近我们的，他也发明了一种分析方式，对于共价键能量来说，这是我们真正想要的。 - Well, if it is a good electron donor in an electron transfer reaction, if the same element finds itself in a covalent bond, it is going to be a good electron donor, although it is not full transfer.
如果它是一个在电子反应中，的好捐赠者，如果相同电子发现他在共价电子里，它将成为一个好的捐赠者，虽然没有完全转换。 - Peroxide: Any of a class of chemical compounds in which two oxygen atoms are linked by a single covalent Bond.
过氧化物：任何由两个氧原子以单个共价键相互结合在一起的一类化合物。 - Disulfide bridge In PROTEINS, a covalent bond formed between the sulfhydryl (-SH) groups of different cysteine molecules.
在蛋白质中两个半胱氨酸残基的两个巯基之间形成的共价键。 - So, that's his gift to us: the Lewis structure, and the idea that you could share electrons and form a covalent bond.
这就Lewis给我们的礼物，Lewis结构，你能够通过公用电子，形成共价键。 - A covalent bond in which both electrons are provided by one of the atoms.
两个电子都由一个原子提供的共价键。 - A substance that provides a pair of electrons for a covalent bond with an acid.
能够提供一对电子给一个酸形成共价键的化合物。 - A nonpolar covalent bond happens when both atoms have the same strength of electric attraction for the shared electrons.
两个原子对共用电子对具有相同的引力时，则形成非极性共价键。 - Silicon carbide was a strong covalent bond compound, which had favorable high temperature, electricity, mechanism and chemistry capability.
碳化硅材料是共价键极强的化合物，具有良好的高温性能、电性能、机械性能和化学性能。 - When we're talking about r for internuclear distance, we're talking about the distance between two different nuclei in a bond, in a covalent bond.
当我们说，r，代表的是核间距的时候，我们讨论的是一个距离，在一个键&一个共价键的两端的原子核之间的距离。 - Likewise, the element that is a good electron acceptor in an electron transfer reaction is going to be the element that is going to hog the electrons in a covalent bond.
同样的，这个元素在一个电子转移反应中，是个很好的受赠者它将成为在共价电子，中吸引电子的元素。 - A covalent bond is any time we have a pair of electrons that is shared between two different atoms.
所谓共价键就是我们有两个原子，共用一对电子。 - What's the definition of the covalent bond?
共价键的定义是什么？ - The former is primarily formed by covalent bond electrovalent bond, while the later is obtained by molecular deposition ( MD) and SAMs based on chemisorption.
单层膜主要指以共价键和离子键为驱动力形成的，多层膜的组装方法主要是分子沉积（MD）技术和基于化学吸附的自组装单分子膜技术。 - Increase of covalent bond ( S S) among proteins;
蛋白质分子间共价键（SS）力增大； - So natural HA is chemically modified in the study and the methods include ion cross-linking and covalent bond cross-linking.
为此，本课题对天然的HA采用了离子交联法和共价键交联法进行了化学修饰，目的是延长HA在体内的滞留时间，并对两种交联方法进行了对比实验研究。 - Composite structural model containing covalent bond cross-linking non-chemical bond association is proposed for sedimentary organic matter.
根据溶胀-抽提机理研究分析，作者首次提出了沉积有机质中包含共价键交联结构和分子间非化学键缔合结构在内的新的复合结构模型。 - FTIR analysis indicates covalent couple of hydrophilic layers and dye release determines the covalent bond of the ligand immobilization.
FTIR和染料释放分析结果表明，亲水层和配基与膜均是共价结合，该膜具有良好的化学稳定性。 - The relations of the covalent bond lengths calculated by the model agree with the empirical ones.
由此计算出来的共价单键、双键和叁键之间的键长关系基本符合共键长间的经验关系。 - The results show: their bond order of Al and covalent bond order of Al-O bond are alike;
研究结果表明：两者结构中Al的键级和Al&O键共价键级大致相同。 - Acetalized poly ( vinyl alcohol)( PVA) graftes heparin by covalent bond.
用聚乙烯醇（PVA）缩醛化方法，共价键结合肝素。 - The adsorption induced molecular structure changed and charge redistributed, which was in favor of reactant molecules internal covalent bond broken and a new product generated.
吸附作用引起的分子几何构型变化和电荷的转移及重新分配，有利于反应物分子内部价键的断裂和产物的形成。 - In these binary composite oxides, bonds O-Al and O-Y are composed of stronger ionic bond and weaker covalent bond.
在这些二元复合氧化物中O-Al键、O-Y键都是离子性较强、共价性较弱的混合键。 - The photobleaching of quantum dots adsorbed or fixed through covalent bond at glass slide, and exposed in air, was investigated in detail.
实验分别研究了连续激发状态下溶液中在玻片表面非特异性吸附的量子点、空气中的量子点及溶液中以共价键固定到玻片基底上的量子点的光漂白状况。