1.
Influence of Grafted Groups and Amino Cation on the Antifungal Activity of Water-soluble Chitosan Derivatives;
水溶性壳聚糖衍生物的取代基团及氨基正电性对抑菌活性的影响
2.
The activities of palladium catalysed cross coupling reactions of substituted bromobenzenes were studied.
分析了温度、化剂、同取代基团对取代溴苯发生钯催化偶联反应活性的影响。
3.
Containing three replaceable atoms or radicals.
三羟基的包含有三个可取代的原子或基团的
4.
Synthesis, Structure and Properties of Polysilanes with Inorganic-Substituents;
无机基团取代聚硅烷的合成、结构及其性能研究
5.
Influence of the Position of Functional Groups in Substituents on Liquid Crystalline Behavior of N-benzyl Chitosan Derivatives
取代基上官能团位置对苄基壳聚糖衍生物液晶性的影响
6.
Synthesis and Photophysical Properties of Zinc Phthalocyanines with Azobenzene as Peripheral Groups
以偶氮苯基团为周边取代基的锌酞菁的合成及光物理性质
7.
Influence of the Properties of Leaving Group,Non-leaving Group and Intermediate on the Aminolysis Reaction of Substituted Phenyl Benzoates
离去基团、非离去基团及中间体性质对取代苯甲酸苯酯氨解反应的影响
8.
Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts.
大多数连于芳核能被直接取代的基团仅限于重氮盐。
9.
Many groups can be added by nucleophilic substitution on a diazonium salt.
许多基团可通过向得自胶的重氮盐作亲核取代而加以导入。
10.
Synthesis, and Structures and Spectroscopic Characterization of Compounds Based on Covalently Bonded Organic-Polyoxomolybdates;
有机基团取代的多钼氧酸盐的合成、结构及性质研究
11.
Synthesis, Characterization and Further Functional of Compounds Based on Covalent Bonded Aminophenol-Polyoxomolybdates;
氨基酚系列取代的六钼氧酸盐的合成、表征及进一步官能团化
12.
Containing Silicon Large Group Substituted Acetylene Monomer Synthesis and Polymer Preparation
含硅大基团取代聚乙炔单体的合成及聚合物的制备
13.
The influence of topological steric effect index of substituent on the acidity of substitutedimidazolium ionic liquid
基团立体屏蔽效应对取代咪唑离子液体酸性的影响
14.
Preparation and optical limiting properties of functional polyacrylate copolymers(poly(PAC-co-MMA)) containing long conjugated chromophore
长共轭基团取代功能聚丙烯酸酯的制备及光限幅性能研究
15.
in its place appears a new society, with its control centered in the state, the subordinate units of which are no longer kinship associations, but local associations;
组成为国家的新社会取而代之，而国家的基层单位已经不是血族团体，而是地区团体了。
16.
The parent is numbered from the principal functional group to the other end, the direction being chosen to give the lowest numbers to the substituents.
将母体从主要官能团所在的一端向另一端进行编号,并选取使取代基编号最小的方向,
17.
QUANTIFYING THE SUBSTITUENT EFFECT WITH PENETRATING-SHIELDING CONSTANT(Ⅳ)──the relation of electron binding energy and group electronegativity
屏蔽-钻穿常数与取代基效应的定量研究──Ⅳ基团电负性与电子结合能的关系
18.
" Salt: Chemical compound formed when the hydrogen of an acid is replaced by a metal or its equivalent, such as ammonium (NH4)."
盐:酸中的氢被金属或相当金属的基团如氨(NH4)取代后所生成的化合物。