催化作用

By using cadmium acetate as catalyst, polyitaconic anhydride was prepared through ring opening polymerization of itaconic anhydride.

以衣康酸为原料合成了衣康酸酐，并在乙酸镉的催化作用下通过开环聚合得到了聚衣康酸酐。

As the primary factor, alkabinity should condition were acquired. As the primary factor, alkabinity should be below 12g/L; the desulfurization effect is optimum when the ratio of tannic and sodiumm metavanadate was 1.5-2; the high absorption temperature is unfavour for desulfurzation 30~40癈 was proved to be effective through experiments.

并得出碱度是影响其脱硫效率的主要因素，总碱度控制在129几以下比较适宜；拷胶和钒在脱硫过程中只是起催化作用，且得到二者比例满足1.5一2时，脱硫效果最佳；温度对脱硫效率的影响主要是在较高温度下会促进副产物 NaZSZO3的生成，所以脱硫反应器中的温度不能太高，经实验证明一般控制在30一40℃。

Recently, it has been found that the multinucleate complexes play an important role in organism due to their unique catalysis and biological activity.

近年来，人们发现多核配合物在生物体内具有独特的生物活性和催化作用。

The selective linear dimerization of isoprene to formate myrcene in a single phase catalyst solution prepared by mixing two metals, amine, solvent and a small content of isoprene was studied.

摘 要：研究了异戊二烯在两种金属催化作用下均相线性二聚生成月桂烯的影响因素，得到优惠工艺条件：反应温度 13℃，催化剂∶异戊二烯=0 。0 5∶1 0 ，胺∶异戊二烯=0 。0 7∶1.0。

Polylactide/ nano-silica composites were synthesized with lactide and modified nano-silica by tin octoate catalyst.

以丙交酯和改性后的纳米二氧化硅为原料，在辛酸亚锡催化作用下，制备了聚乳酸纳米二氧化硅复合材料。

The results suggest the MWCNT with the catalytic effect for the three molecules, their oxidic potential and density of oxidic current are also changed and increased.

结果表明，MWCNT对这3种酚类物质具有催化作用，使其氧化峰电位负移，氧化电流增加。

In the presence of O〓, peroxyl radicals formed under neutral condition are either directly oxidized to non-aromatic acids, or forms aromatic intermediates, which are further oxidized to non-aromatic acids; peroxyl radicals formed under alkaline conditions are directly oxidized to non-aromatic acids.

有氧状态下的羟基自由基氧化体系中，过氧自由基在氧气的催化作用下既可开环形成有机酸，也可形成4-氯邻苯二酚和对苯二酚，进而氧化开环成有机酸，并最终矿化；碱性条件下的过氧自由基则直接开环降解。

The plastein reaction is considered to involve the formation of polypeptides by a reversal of the usual peptide bond hydrolysis to produce "resynthesized" protein or polypeptides from a hydrolysate of protein.

类蛋白反应通常认为是酶水解的逆反应，是指在一定条件下，通过蛋白酶的催化作用将高浓度的蛋白质水解物与蛋白酶一起加热处理，生成一种类似高分子蛋白质物质的反应。

Sci.Tech.,Harbin,150080,China） Abstract:Dipropargylfluorene was prepared by the reaction of fluorene and propargyl bromide with the catalyst of NaOH/PhCH2N Me3Cl in 85% yield.

9，9二炔丙基芴的合成和发光性能邱加龙桂太龙许晶王玥摘要：芴与炔丙基溴在NaOH/PhCH2N Me3Cl催化作用下反应天生85%的二炔丙基芴。

Compared with thermozyme,the first-class structure change of the psychrophilic enzyme can lead to space structure change and the structure of the enzyme is more flexible.Thus,this enzyme can catalyze with less energy in low temperature.

与嗜温酶相比，嗜冷酶一级结构的变化导致空间结构的变化，使酶分子的构象具有更大的柔性，同时也有利于这类酶在低温条件下需要更少的能量而发挥催化作用。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！