查询词典 polymer

The copolymerization of cycloolefin and α-olefin, and structure of the obtained polymer are significantly affected by the structure and symmetry of metallocene catalysts, electronic effect and steric hindrance of ligands.

着重介绍了加成聚合法中茂金属催化剂的结构对称性、配体的电子和体积效应、反应条件等对聚合活性、产物组成与序列分布及相关热性能的影响。

The copolymerization of cycloolefin and α-olefin,and the structure of the obtained polymer are significantly affected by the structure and symmetry of metallocene catalysts ,electronic effect and steric hindrance of ligands.

着重介绍了加成聚合法中茂金属催化剂的结构对称性、配体的电子和体积效应、反应条件等对聚合活性、产物组成与序列分布及相关热性能的影响。

We composed the active cyclostyle polymerand then inserted the rare-earth to the cyclostyle polymer by sol-gel method. Then weprepared the new type nanometer oganic rare-earth compounds.

我们设计合成了纳米稀土金属溶胶和活性模板聚合物，然后用溶胶-凝胶法在活性模板聚合物上导入纳米稀土金属化合物，进而制备了新型纳米有机稀土金属复合物。

DNA refers to deoxyribonucleic the acid deoxyribonucleic acid (chromosome and gene constituent) the deaeration nucleotide high polymer, is the chromosome principal constituent.

DNA 指deoxyribonucleic acid 脱氧核糖核酸(染色体和基因的组成部分)脱氧核苷酸的高聚物，是染色体的主要成分。

To improve the environmental performance of polymer degradation, decomposer easy that waste recovery and disposal friendlytridion environment.

改善环保性能采用聚合物降解剂、分解剂等使废弃物易回收处理，利于环保。

All the decomposition temperature of the polymer was above 300 ℃, with a good thermal stability.

所有共聚物的热分解温度均在300℃以上，具有良好的热稳定性。

In this part of thesis,the definiens, origin and development of CMEs are mentioned,and the preparations,types and characterization techniques of CMEs are introduced subsequently.In addition,the preparation methods and applications in electrochemical analysis of functional silica and polymer modified electrodes are detailedly reviewed.

本部分首先简单介绍了化学修饰电极的定义和来源与兴起，然后介绍了化学修饰电极的制备和类型以及表征方法，着重综述了功能化硅胶和聚合物修饰电极的制备方法及其在电分析化学中的应用。

The first polymer particles have a glass transition temperature in the range of from -20 DEG C.

该第一聚合物颗粒的玻璃化转变温度为-20至25℃。

Summarized the development of research in degradable polymer material and the developing trend was also put forward.

还综述了可降解高分子材料的研究进展及其发展趋势。

The application of this method will improve the study of age and degradation of polymer material.

根据自适应过滤法的特点，将其用于高分子材料老化与降解的研究，对我们的研究工作将起到推动作用。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！