查询词典 functional group

Coefficient of the equation, functional group number and weight average functionality indirectly measured.

通过测定该方程的系数，间接测得试样官能团数和重均官能度。

The varying tendencies of partition coefficients of some compounds in aqueous or nonaqueous solvent systems by calculating the phase equilibria with universal quasichemical functional group activity coefficient model are predicted. These compounds included saturated and unsaturated fatty acids ethyl esters,N2,4dinitrophenylamino alcohols, pnitrophenyl glucosides and so on, with simple structures and much differences in polarity.

以饱和及不饱和脂肪酸乙酯、2，4二硝基苯胺基脂肪醇和对硝基苯基葡萄糖甙等结构较为简单、极性差别较大的溶质系列为研究对象，应用修正的通用基团活度系数模型，通过相平衡计算，预测了它们在含水或不含水的溶剂体系中分配系数的变化趋势，并与前人的工作进行了对比。

Quinone: Any member of a class of cyclic organic compound s comprising a six-membered unsaturated ring to which two oxygen atoms are bonded as carbonyl groups (-C=O; see functional group).

醌：在六元不饱和环中，含有两个紧邻的，或被乙烯基撑隔开的羰基的环状有机化合物的统称。

Based on the evidence theory and the functional group decomposition thought, the paper produced a kind of N-k contingency identification method under this failure pattern.

并基于证据理论和功能组分解思想，给出了该故障模式下的N-k事故辨识方法。

Song Yi,Wang Chengshan.N-k contingency identification method under double failure incident based on evidence theory and functional group decomposition.

双重故障模式下基于证据理论和功能组合分解的N-k事故辨识方法。

After depolymerization of coal, its content of carbon and hydrogen decreases whereas that of chlorine,oxygen,humic acid as well as active functional group increases.

降解过程中，常常在煤分子上引入或生成新的活性基团，这些基团可大大提高煤的反应活性，为煤的进一步加工利用提供基础。

Because of different binding constants with surface functional group, there is different mobility with different kinds of divalent cation.

不同二价阳离子因为其与细胞表面官能基键结常数不同，而造成不同的电泳迁移率的变化。

the functionality dyspepsia is continues or manifests suddenly repeatedly, including epigastralgia, on the distension of the abdomen, is early full, belches, disgusting, epigastrium symptom and so on vomit group of syndromes.

功能性消化不良(functional dyspepsia， fd)是持续或反复发作的，包括上腹痛、上腹胀、早饱、嗳气、恶心、呕吐等上腹部症状的一组症候群。

Based on functional group transformation and C-C bond formation,this review focuses on the first-rate progress of the catalytic asymmetric reaction in China in recent years,especially its application in synthesis of chiral drugs and pharmaceutical intermediates.

本文从官能团的转换和碳硫键形成的角度概述了我国近年来在不对称催化反应领域的研究进展，特别是在手性药物及其中间体合成中的应用进展。

The guanidine functional group, often found in natural products, plays important roles in biological systems.

胍基官能团在很多生命体系中起着关键的作用，它存在于天然有机化合物中。

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。