查询词典 moieties

Spirobifluorenylene, ethynylene, and vinylene groups as the bridge are introduced to connect both truxene moieties to understand the effect of the large steric chromophores on the properties of the desired materials.

9，9'- Spirobifluorenylene，炔桥，和乙炔团体的桥梁，介绍了连接两个truxene基团，以了解生色团的大型立体效应对所需材料的性能。

Thus. Treatment of CR1R2=C=CH2 (R1 = R2 = Me; R1 = H, R2 = n-Bu; R2 = Ph; R2 = cyclohexyl; R2 = cyclopentyl, R2 = C6H5O, R2 = 2-IC6H4O, R2 = 4-IC6H4O) with bisdiborn in the presence of Pd2 (5 mol %) and 3-iodo-2-methyl-2-cyclohexen-1-one (5 mol %) in toluene at 80 oC gave products bearing both vinylic and allylic boron moieties in good to excellent yields.

但我们发现可以使用Pd金属错合物与有机碘化物共同催化下的系统，来进行此种加成反应。溶剂的选择以甲苯为最佳，Pd错合物以没有强配位基存在为最好的选择。

A series of polymers containing 1,8-naphthalimide moieties in the side chains have been prepared via RAFT technique. Firstly, five styrene and two methyl acrylate based 1,8-naphthalimide monomers were synthesized and characterized. Then, carbazyl group terminated polystyrene was used as macromolecular RAFT agent.

我们合成了5种苯乙烯类和2种甲基丙烯酸酯类萘酰亚胺单体，以一种含末端带咔唑结构的聚苯乙烯为大分子RAFT试剂，考察了所得单体的RAFT聚合，发现苯乙烯类1，8-萘酰亚胺单体可以聚合，但是聚合度不高，甲基丙烯酸酯类1，8-萘酰亚胺单体RAFT聚合不可控。

At any rate, there is no bar against this in the organization into moieties as we know it.

不论如何，我们所知道的那种级别组织，对于这一点是没有设下任何障碍的。

The position, type and number of sugar moieties incorporated to the antibiotics have great impact on its bioactivity.

本文综述了糖基转移酶的种类、功能、特性及其在组合生物合成中的应用与研究前景。

Amino acids are chemical moieties that form the basic building blocks of proteins .

氨基酸是组成蛋白质的化学根。

The position , type and number of sugar moieties incorporated to the antibiotics have great impact on its bioactivity .

2 糖苷类抗生素中糖基的主要作用糖基化的作用和意义主要体现在以下三个方面：第一，增加化合物的水溶性。

The position, type and number of sugar moieties incorporated to the antibiotics have great impact on its bioactivity.

目前，随着抗生素的广泛使用，耐药菌也在逐年增加，迫切需要寻找新的抗生素来与之抗衡。

The structure of the organosilane moieties and ultrasonic treatment time were all significant for the quantities of grafted amino groups .

有机官能团的结构和超声波处理的时间对于嫁接有机基团的量很重要。

One approach improving electron injection and transport in conjugated polymers is to incorporate moieties with high electron affinities .

提高共轭聚合物的电子注入和传输能力的方法之一是与高电子亲和势的基团结合。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。