氢

The way to prepare iodomethane using methanol, potassium iodine and acid as regents has the disadvantages such as many side reactions and low yield, while the synthesize route from dimethyl sulfate and potassium iodine has the advantages of high yield and simple separation.

醇与氢卤酸作用是制备卤代烃的常用方法，以甲醇为试剂，以碘化钾与酸作用生成氢碘酸制备碘甲烷的方法存在副反应多、收率不高的特点；而以硫酸二甲酯及碘化钾为试剂的合成路线具有操作容易、收率高、纯化简单的优点。

The catalytic performance was studied using the hydrogenation of methyl isobutyl ketone as the probe reaction.

以甲基异丁基甲酮加氢制备甲基异丁基甲醇为探针反应，考察了所合成材料的加氢催化性能。

Effect of albendazole upon activity of phosphoenolpyruvate carboxykinase,pyruvate kinase,fumarate reductase,isocitric dehydrogenase, malate dehydrogenase of Cysticercus cellulosae in swine bodies had been determined in the experiment .

测定了在阿苯达唑作用下猪体内囊尾蚴磷酸烯醇式丙酮酸羧激酶、丙酮酸激酶、延胡索酸还原酶、异柠檬酸脱氢酶、苹果酸脱氢酶活性的变化。

A mild and convenient method for the synthesis of 4(3)-substituted 3(4)-nitro-1H-pyrroles and 3-substituted 4-methyl-2-tosyl-1H-pyrroles from nitroolefins and tosylmethyl isocyanide in ionic liquid 1-butyl-3- methylimidazolium bromide was developed.

本文以离子液体－溴化1-丁基-3-甲基咪唑为溶剂，采用对甲苯磺酰基甲基异腈与硝基烯反应生成4(3)-取代-3(4)-硝基-1-氢吡咯或3-取代-4-甲基-2-对甲苯磺酰基-1-氢吡咯。

The natural bond orbital analysis shows that these H-bonds can be interpreted by the theory of hypercon jugation and rehybridization.

自然键轨道分析表明，超共轭和重杂化理论可以解释这些双氢键和氢键的形成机制。

In this paper,characteristics of generating hydrogen from methane wet air catalytic reforming reaction on the premixed chamber wall with Ni katalyst was done with numerical simulatio.

0，对甲烷/湿空气在壁面涂有含稀土的镍基催化剂的微细预混腔中催化重整产氢特性进行了数利用碳氢燃料和湿空气中水蒸气预混催化重整产氢来强化燃烧，以实现微尺度下燃料的持续稳定高效燃烧。

In the second section, with ketone and hydroxylamine hydrochloride as the starting materials, 3-aminopropanol is prepared via three steps including reaction of ketone and hydroxylamine hydrochloride , condensation of ketoxime and acrylonitrile, and hydrogenation cracking of condensation product.

第二是3-氨基丙醇的制备，由酮肟丙烯睛缩合物催化氢化裂解制得：即先以酮、盐酸羟胺为起始原料在碱性条件下合成酮肟，再与丙烯腈反应生成酮肟丙烯腈缩合物后经催化氢化裂解制得3-氨基丙醇。

The hepatic glycogen and the activities of ACP, LDH, returned to normal at 7th postoperative day in the Labiatae group.

3丹参组术后3天琥珀酸脱氢酶、镁离子激活三磷酸腺苷酶、葡萄糖-6-磷酸酶活性升高，术后7天肝糖原和乳酸脱氢酶、酸性磷酸酶活性回到正常水平。

The hemodynamic parameters,plasma lactic acid,lacto dehydrogenase,phospholipase A\-2(PLA\-2)and the plasma and tissue MDA were measured;and H + ATPase and succinodehydrogenase of hepatic c...

测定血流动力学，血乳酸、乳酸脱氢酶、磷脂酶 A2 (PL A2 )，血液和组织 MDA，分离肝线粒体，测定线粒体 H+- ATP酶和琥珀酸脱氢酶。

This thesis sets up a new method to synthesize stereoselectively ?ra玸--2,5-disubstituted tetrahydrofurans by introducing two alkyl groups in 3-C and 5-C of lactol, flash decomposition and hydrogenation.

本文独创新的合成方法：以-乳醇，即-4，10-二氧杂三环[5.2.1.0~(2，6)]-癸-8-烯-3-醇为原料，在其3-位和5-位先反向引入两个取代基，再经过热分解和催化加氢反应，高立体选择性地合成反式-2，5-二取代四氢呋喃。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。