催化作用

Enzymatic synthesis of glycerides directly from glycerol and polyunsaturated fatty acids was studied.

研究了在脂肪酶N435的催化作用下，游离多不饱和脂肪酸与甘油酯化合成的工艺，分别考察了甘油与脂肪酸的质量比、反应时间、反应温度、酶用量、初始加水量等单因素对酯化效果的影响。

The promotion of coal liquefaction by iron and tin has been compared in two Victorian brown coals, Morwell and Coolungoolun. Tin was more effective in the low-sulphur Mouwell coal, whereas iron was better suited to the high-sulphur Coolungoolun coal.

我们以Morwell和Coolungoolun两种维多利亚褐煤进行实验，对铁和锡在煤的液化中的催化作用进行了比较，发现锡对低硫的Morwell煤较为有效，而铁则更适合于高硫的Coolungoolun煤。

Cd can sensitively catalyze the discoloration reaction of indigo carmine and potassium bromate in HCl medium and in the presence of α,α′-bipy as activator.

基于在盐酸介质中，以α，α′-联吡啶为活化剂，镉对溴酸钾氧化靛蓝胭脂红褪色反应有灵敏的催化作用，建立了测定镉的动力学新方法。

In order to study the catalysis of iron oxide nanoparticles on the metallic fuel ,the nanoparticles of α-Fe2O3 were prepared using iron chloride as raw material and special surfactant as dispersant agent by an orthonormal test.

为了研究纳米氧化铁对金属燃料的催化作用，以氯化铁为原料，以特种表面活性剂为分散剂，通过正交试验制备出分散性好、晶粒度为25。

The results indicated the ally1 carbon of cyclohexene was catalytically oxidized by molecular oxygen at atmospheric pressure in the presence of the polymer complex and a trace of HOAc at 70℃, which afforded corresponding alcohol, ketone and hydroperoxide acting as intermediate.

结果表明，70℃时，以微量醋酸为添加剂，在催化剂的催化作用下，以常压氧气氧化环己烯，得到烯丙基位的氧化产物环己烯醇、环己烯酮和中间产物环己烯过氧化氢。

In chapter I, We study that the catalysis of Al~(3+) on the reduction of Cr~(6+) by citrate acid, tartaric acid, oxalate acid, butyric acid, laetrile acid and malic acid at different temperatures and pH.

本论文共分三部分：第一部分：在不同的温度和pH条件下，通过批式试验研究了Al~(3+)对柠檬酸、酒石酸、草酸、正丁酸、苦杏仁酸、苹果酸还原Cr~(6+)的催化作用。

Thermal decomposition, sometimes with catalysis, of a complex substance, especially the breaking of petroleum molecules into shorter molecules to extract low-boiling fractions such as gasoline .

裂化有时通过催化作用对复合物的热分解，尤指把石油分子分解成更小的分子并提取低沸点的分馏部分，如汽油

In order to investigate the effect of 2,4-Dihydroxylbenzoate on the combustion of double-base propellant, the combustion law of the propellants containing β-Bi was studied by means of the single frame amplification photography fl miniature thermocouple, the scanning electron microscopy and the LINK ISIS energy spectrum.

为了探索2，4-二羟基苯甲酸铋对双基推进剂燃烧的催化作用，采用单幅放大彩色摄影法、Ⅱ型微热电偶技术、扫描电镜和电子能谱研究了含2，4-二羟基苯甲酸铋双基推进剂的燃烧规律。

The mechanism of metal oxides and noble metal Pd introduced to TiO2 in order to get better properties was overall discussed.

通过表面贵金属Pd对TiO2基氧敏材料催化作用的分析，进一步认识了表面气体与材料电子交换的机理。

These catalysts were employed in the HKR of epichlorohydrin, styrene oxide and phenyl glycidyl ether.

研究了其对环氧苯乙烷、环氧氯丙烷以及苯氧基环氧丙烷等的水解动力学拆分的催化作用。

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！