查询词典 preference bond

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。

Based on the models, we elucidated the distribution of the stericfield, the hydrophobic field, the electrostatic field, the hydrogen bond acceptor andhydrogen bond donor, which contribute to the activity.

通过对CoMFA和CoMSIA模型的分析，确定了抑制剂上对活性有利的立体大基团、疏水性结构、电性基团以及氢键供受体等在靶酶活性结合部位的空间分布情况。

As a result, electrostatic interactions and hydrogen bond were identified to contribute to the affinity interaction, while hydrophobic interaction contributed little. Moreover, the importance of electrostatic interactions and hydrogen bond to the affinity changed with pH value.The effect of rate of mobile phase on the retention of insulin was researched and the dynamic adsorption isotherm was got by analyzing the breakthrough data with Langmuir equation.

通过调节流动相的pH值和离子强度，并使用尿素和乙二醇分别对吸附蛋白进行洗脱，详细研究了吸附效果最好的目标蛋白质与肽配基之间的亲和吸附机理，发现静电作用和氢键是二者之间产生亲和吸附的主要作用力，而疏水相互作用对该亲和几乎没有贡献。

The interaction of DAB and RB with SPM and the cells are exothermal and idiopathic, which contained the union of non-covalent bonds, such as electrostatic bond, hydrogen bond and van der Waals force. Moreover, most of DAB and RB were accumulated on the excellular membrane and walls, to hardly enter the cytoplasm.

结果表明， DAB， RB与SPM和细胞外膜有强烈的单分子层化学吸附，是自发的放热反应，主要通过电荷对吸引、氢键等非共价键结合在SPM和细胞外表面，且绝大部分DAB， RB积累、滞留在细胞膜壁上。

Demonstrated by adsorptive capacity and adsorptive energy, polyacrylamides have strong interaction on mineral surface with similar action mode to that of starches, for example, hydrolyzed polyacrylamide and hydroxamic acid polyacrylamide mainly by chemical force, cationic polyacrylamide by electrostatic force and hydrogen bond, nonionic polyacrylamide by hydrogen bond, while amphoteric polyacrylamide embodying both the characters of anionic and cationic one.

聚丙烯酰胺类化合物在矿物表面的吸附能以及吸附量均显示出药剂与矿物间存在的强作用，作用方式与淀粉类药剂相似：阴离子聚丙烯酰胺、羟肟酸聚丙烯酰胺主要靠化学作用，阳离子聚丙烯酰胺借助静电力和氢键，非离子型的聚丙烯酰胺则主要是氢键作用，两性聚丙烯酰胺同时具有阴离子和阳离子聚丙烯酰胺药剂的作用特点。

In order to install the electrothermic Board, silica gel used for blocking the release version of silica gel used for blocking the General selection of grass-roots level to 1-3 mm in thickness of the aluminum plate. Silica gel layer from the aluminum plate between the bond strength directly linked to silica gel used for blocking the version of the service life, if the silican layer from the aluminum plate between the bond strength is not high enough, the high temperature and high pressure easy to crack.

当然，在本质操纵洋上述几个参数的设定不是白云苍狗的，而给根据本质处事洋的需给举行拔取和设定，如铜、锌版不同，平均的烫印压辛、较矮的烫印温量和较缓的烫印速率会爆发更抱负的烫印成果，因为平均的烫印压辛使电化铝的黏结性更好，较矮的烫印温量使电化铝的光华量更矮，而较缓的烫印速率是为了适答较矮的烫印温量。

Come to introduce an electrovalent bond the nature taking form from the electrovalent bond.

从离子键形成的本质来介绍离子键。

The acting force between CBF and the inorganic including kaolin is electrovalent bond, which is determined by Zeta electric potential, hydrogen bond and electrov...

Zeta电位测定及氢键和离子键检验结果表明，CBF与高岭土等无机颗粒之间的作用力为离子键，絮凝过程中存在架桥作用。

The results show that the orders of binding energy of the four polymers with (110) crystal surface are as follows: AA-MA＞HPMA＞AA-HPA＞AA-MAE, while the analysis of various interactions and radial distribution functions of all systems indicates that binding energies are mainly provided by coulomb interaction including electrovalent bond and a spot of hydrogen bond.

结果表明，聚羧酸与(110)晶面结合能的大小排序为AA-MA＞HPMA＞AA-HPA＞AA-MAE；对体系各种相互作用以及径向分布函数的分析表明，结合能主要由库仑作用提供，并含少量氢键成分。

Binding states between modified flax fabrics and anion dyes have been investigated by infrared spectrometry, X-diffraction, peeling of color and experiments on water proofing of modified flax fabric with taking reactive red X-3B, direct Chinese red 6B and acid yellow G for examples. The results show that binding force between modified flax and acid dye is coulomb's force, and besides hydrogen bond and gravitation among molecule, electrovalent bond has been formed among direct dye and modified flax.

以直接枣红6B、活性红X—3B、酸性金黄G为例，采用X光衍射法、红外光谱法、剥色实验及织物表面防水实验，研究了改性亚麻织物与阴离子染料之间的结合状态，结果表明改性亚麻与酸性染料之间主要靠离子间的库仑力结合，与直接染料之间在形成氢键和范德华力的基础上，还形成了离子键结合。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。