氢

The improving thermal stability of amorphous alloys could be favored to the hydrogenation and dehydrogenation.

提高非晶态合金的热稳定性，对加氢与脱氢反应均有利。

Deactivation of Pt/Al_2O_3 catalyst for selective oxidation of hydrogen from ethylbenzene dehydrogenation was studied.

考察和分析了Pt/Al2O3体系的乙苯脱氢-氢选择性氧化催化剂的失活原因。

In order to reduce the cost more and accelerate the application in the civil area, the laser rapid forming technology with low cost hydrogenation dehydrogenization titanium alloy powders had been investigated, and the following results were obtained:1 Disclosed the formation mechanisms and influencing factors of t.

为进一步降低该技术的成本，促进其在民用领域的发展，本文针对低成本氢化脱氢(hydrogenmiondehydrogenization，HDH)钛合金粉末的激光快速成形进行研究，取得的主要成果如下： 1。从粉末特性及成形工艺角度揭示了缺陷的形成机理及影响因素，结果发现：(1)气孔的产生是由于粉末在成形过程中卷入成形气氛中的氩气所致。

The analysis of thermal behavior and chemical structure show that the three main reactions do not initiate simultaneously. Dehydrogenization and cyclization reactions begin at the initial stage of stabilization, while oxidation reaction takes place on the precondition of cyclization reaction. Cyclization reaction has induction period that is influenced by temperature and heating rate.

热分析和化学结构分析的结果表明，预氧化过程中的三大主要反应并非同时进行，脱氢反应和环化反应从预氧化初期开始，而氧化反应需要以环化反应为前提条件，随后进行；环化反应具有一定的诱导期；在氧化性气氛中，首先发生脱氢反应，氧对环化反应起到了阻碍作用，使整个过程顺利可控。

Performance comparisons of hydroisomerization dewax base oil and solvent refining base oil are conducted, and problems in the applications of hydroisomerization dewax base oil are discusse

对加氢异构脱蜡基础油与溶剂精制基础油的性能进行了对比，讨论了加氢异构脱蜡基础油在应用中所存在的问题。

The powder of cement was composed of calcium carbonate, tricalcium phosphate and calcium phosphate dibasic.

再以磷酸氢二钠和磷酸二氢钠合成浓度为0.2 mol/L的磷酸钠缓冲液，作为固化液。

At present, several common sources of calcium, the calcium carbonate to the highest calcium content of the elements as much as 40 percent, much higher than calcium citrate, calcium lactate, calcium gluconate, dicalcium phosphate, calcium hydride.

目前常见的几种钙源中，以碳酸钙的元素钙含量最高，高达40%，大大高于柠檬酸钙、乳酸钙、葡萄糖酸钙、磷酸氢钙、氢化钙等。

The results showed that the CPC powder mainly consists of dicalcium phosphate dehydrate and tetracalcium phosphate. DCPD changed into hydroxyapatite during the harden process.

结果表明，CPC粉末的主要成分为磷酸氢钙、磷酸四钙，在固化过程中磷酸氢钙转化为羟基磷灰石。

After analyzing the reaction mechanism through literature, we think the reaction from diethanolamine to iminodiatic salt is composed of two steps—reaction from alcohol to aldehyde and the disproportionation reaction of the aldehyde. The selectivity, conversion, rate of this reaction are mainly attributed to the capability of this catalyst.

通过查阅文献资料，分析了反应机理，认为二乙醇胺脱氢生成酸是由两步反应组成─醇脱氢生成醛与醛的歧化，催化剂的性能是影响反应转化率、选择性及反应速度的主要因素，确定了采用沉淀法制备Cu/ZrO2做催化剂。

A dihydric alcohol in which one hydroxyl has been replaced with an amino group.

脱氢酒精一种脱氢酒精，其中的一个羟基被一个氨基所代替

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。