复分解的

A desire to elucidate this reaction, and the analogous alkyne metathesis reaction, led to the discovery and development of high oxidation state complexes that contain a M=C or M C bond, so-called alkylidene and alkylidyne complexes, respectively.

为了阐述复分解反应，发现和发展了含有双键和三键的金属有机化合物，分别被称谓杂金属烯烃和杂金属炔烃。

In particular, the production of propylene and other important olefins via olefin metathesis reaction from n-butenes feedstock has received considerable attention.

特别是在利用正丁烯生产丙烯和其它重要单烯烃方面，复分解反应受到越来越多的重视。

The chemical strategies for preparing magnetic iron oxide nanoparticles are reviewed and generalized in metathesis strategy and pyrolytic decomposition strategy in this paper.

本文对铁的氧化物磁性纳米颗粒的化学制备方法进行了综述，将其归结为复分解和热分解两种策略；总结了近期含铁的氧化物纳米颗粒组装体的研究进展，并对未来的发展做了展望。

Several kinds of ruthenium-catalyzed organic reactions were reviewed: hydrogenation ,oxidation,isomerization,metathesis.

综述了钌催化剂催化的主要几类有机合成反应，包括氢化、氧化、异构化、复分解。

The base principle,key technology,characteristic and progress on synthesis of ceramic powders by solid-state metathesis reactions are described.

本文扼要地介绍了固态复分解反应法制备陶瓷粉末的基本原理、关键技术、特点及其研究进展。

The catalysts of the invention is able to catalyse metathetic degradation of nitrile rubbers with a higher activity than the metathesis catalysts available at present and thus makes possible an increase in the reaction rate and the setting of lower molecular weights of the degraded nitrile rubbers at a comparable noble metal content.

本发明的催化剂能够以比目前可获得的复分解催化剂更高的活性来催化丁腈橡胶的复分解降解，由此在可比较的贵金属含量下使之有可能增加反应速率并设定降解的丁腈橡胶的较低分子量。

A series of five-membered lactams containing 1, 3-diene moity were prepared by RCEM reaction, the scope of this reacrion was expanded.

在上述研究的基础上，我们利用烯炔关环复分解反应合成了一系列含 1， 3-二烯结构单元的五元内酰胺化合物，从而进一步拓展了关环复分解反应的应用范围。

Then a new method named parallel recomputing based fault tolerant parallel algorithm is proposed. The authors present the design of PRBFTPA for matrix LU decomposition, and evaluate them by experiments on a cluster system and compare them with the method of checkpointing.

针对许多计算密集型任务中的矩阵LU分解设计了相应的基于并行复算的容错并行算法，并对设计的矩阵LU分解的容错并行算法的性能进行了评估并与checkpointing方法进行了对比。

The factorization of a complex skew-symmetric normal matrix ,which is similar to a complex symmetric normal matrix ,was demonstrated using a logically similar method.

提出一个复矩阵是对称酉矩阵的充要条件，并用逻辑上类似的方法证明一个类似于复对称正规矩阵的复斜对称正规矩阵的分解，最后对复斜对称矩阵得到了类似于复对称矩阵Takagi分解的结论。

By esterification, saponification, doubledecomposition and formulation, liquid rare earth of monoisooctyl phthalate complex heat stabilizer was prepared with phthalic anhydride, isooctyl alcohol, sodium hydrate, rare earth chloride, mixed solvent and other reagents. The optimum conditions are: the temperature of esterfication is 130～140℃,and the reaction time is 1h. The temperature and time of saponification is 60℃ and 10min respectively. The temperature of double decomposition is 60～70℃,and the reaction ti...

摘 要：以邻苯二甲酸酐、异辛醇、氢氧化钠、氯化稀土、混合溶剂、助剂为原料，通过酯化反应、皂化反应、复分解反应以及复配制备了以邻苯二甲酸单异辛酯稀土为主要成分的液态稀土复合热稳定剂，其工艺条件为：酯化反应的温度控制在 130～ 14 0℃，反应时间为 1h ；皂化反应的温度为 6 0℃，反应时间为 5min ；复分解反应的温度在 6 0～ 70℃，反应时间为 1h ；水洗温度控制在 6 0～ 6 5℃；混合溶剂的用量为 5 0 %，稀土含量为 6 0 3%；在复配过程中，采用亚磷酸酯作为辅助热稳定剂，其用量为 5 %～ 7%，PVC中加入 2 %的这种稀土复合热稳定剂，在185℃下，其热稳定时间为 4 5min。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。