查询词典 selectivity

This review summarized the current knowledge on the selectivity of heteromeric assembly and molecular determinant of assembly in TRP channel family.

文章对TRP通道家族中选择性异源组装及组装的分子基础研究的最新现状进行了概述。

Hydroisomerization of n hexadecane on zeolite catalysts was studied and the reaction mechanism was discussed, which may provide new clues to developing hydroisomerization catalysts with high selectivity.

对分子筛催化剂上正十六烷的临氢异构化反应进行了研究，考察了不同分子筛催化剂的活性和选择性，并对临氢异构化反应的产物分布进行了分析。

Under these conditions, the selectivity of hexamethylene alkyl was nearl y 1 00%and the yield was about 33.28%.

试验考察了该催化剂的稳定性，结果表明，在360 h内，其催化活性没有显著变化。

The construction of homocyclic peptide library increased the diversity of the peptide libraries, which will provide new selectivity for the medicine screening.

均环肽库的建立增加了肽库的多样性，为药物筛选提供了新的选择性。

The selectivity of dominant species of arbor by hoolock gibbons in both places had similar characters of external appearance of arbor. The tall arbors with continuous crown and high degree of closure could provide more routes and wider space for movement and better hiding condition for hoolock gibbon.

两地白眉长臂猿对优势乔木的选择都具有相同的外貌形态特征，树形高大、树冠连续、郁闭度高的乔木可为它们提供更多的移动路线、更广的活动空间和更好的隐蔽条件。

There were many factors affecting the hydrochemical characteristics of groundwater in the forming process of groundwater chemical fields, and the affecting action of the factors also had characters of lengthways stages and planar selectivity, t...

在地下水化学场的形成过程中，影响沉积盆地地下水化学性质的因素较多，这些因素对地下水化学性质的影响作用在垂向上具有阶段性，在平面上具有选择性。

Hydrotalcites belong to a family of anionic clays. Because of its special composition and structure, hydrotalcites are shown highly activity and selectivity in catalytic reaction, such as hydrogenization, polymerization, and condensation.

水滑石为一类阴离子型层状粘土，由于其组成和结构的特殊性，使其在催化加氢、聚合、缩合及醇类转化等有机反应中表现出高的催化活性和选择性，同时，它们还可以作为吸附剂、阻燃剂和热稳定剂等。

The results showed that the catalytic selectivity of this transesterification reaction over these organic anion-pillared hydrotalcite was significantly improved.

结果表明，与水滑石相比，org-LDHs对碳酸二甲酯与苯酚酯交换反应的催化选择性有显著的提高。

Phosphonic acids, hydroximic acids, arsenic acids and cationic not only have a strong collecting ability, but also have a strong collecting selectivity which is better than that of fatty acids.

认为脂肪酸类捕收剂的捕收能力较强而选择性较差，与钽铌矿物作用时生成了铁和锰的油酸盐，而不是钽铌的油酸盐。

In the synthesis of canthaxanthin by selective catalylitic oxidating of βcarotene,CO2 was used as acidifying or alkalizing agent,which controlled reacting system acidity and protected polyene.,producing less by-products and increasing catalylitic oxidation selectivity.In the addition reaction of isoprene with hypochloric acid,1-chloro-2-methyl-3-buten-2-ol and l-chloro-2-methyl-3-buten-4-ol were made by controlling of the acidity with carbon dioxide i...

CO2作为酸碱调节剂和惰性气体，在β-胡萝卜素催化氧化合成角黄素反应中，可以控制反应体系酸性，保护原料中的双键，减少副反应发生，提高催化氧化反应的选择性；异戊二烯氯醇化生成1-氯-2-甲基-3-丁烯-2-醇和1-氯-2-甲基-3-丁唏-4-醇反应中，CO2代替有机酸作酸碱调节剂，控制次氯酸的生成速度，达到调控反应的目的，反应条件温和，不副产固体。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。