The corresponding reaction of acetaldehyde is subject to general base catalysis.
乙醛相应的反应服从广义的堿催化。
Decreasing light intensity, the degradation of acetaldehyde and toluene both decreased.
光通量减弱使乙醛和甲苯的降解率均下降。
The energy efficiency of acetaldehyde ozonation increased with the decrease in energy density.
臭氧氧化乙醛的能量效率随能量输入密度的增加而减少。
The energy efficiency of acetaldehyde ozonation also increased with the decrease in energy density.
催化臭氧氧化乙醛的能量效率随能量输入密度的增加而减少。
Higher content of acetaldehyde and higher alcohols were the key reasons of headache after beer drinking.
乙醛及高级醇的含量高是啤酒上头的主要原因。
The new technology adopted will improve the recovery yield of acetaldehyde and reduce the consumption of acetaldehyde .
采用新技术提高了乙醛的回收量，使醋酸消耗下降。
It was formerly derived by fermentation of carbohydrates but is now made synthetically by aldol condensation of acetaldehyde or by oxidation of petroleum gases.
以前它是由碳水化合物发酵得到，现在由乙醛醛醇缩合或石油气体氧化的合成方法制得。
The authors find that the addition of appropriate amount of acetaldehyde to replace a part of formaldehyde distinctly improves the properties of the acetal adhesive.
作者发现，在反应中加入适量乙醛代替部分甲醛、可明显提高缩醛胶的性能。
The acetaldehyde in beer profoundly influences beer flavor. The mechanisms of acetaldehyde formation, factors that affect the acetaldehyde content of beer were reviewed.
啤酒中的乙醛对啤酒的风味有重要的影响。对啤酒中乙醛的形成机理，影响乙醛含量的因素进行了综述。
The conversion of lactic acid was 33.5%over catalyst synthesized with no surfactant, while the selectivity of acetaldehyde and acrylic acid were 40.2%and 1.8%respectively.
未添加表面活性剂所制得催化剂样品的乳酸反应转化率为33.5%，而丙烯酸及乙醛的选择性分别为40.2%和1.8%。
Up to the present, the manufacture process of acetic acid is still the method of acetaldehyde oxidation in this factory. The rectification technology was a twin tower flowsheet.
吉化电石厂的醋酸生产目前仍采用乙醛氧化法制取醋酸的工艺技术，精馏工艺采用的流程为高低高的双塔精馏方式。
With the implementation of these measures, the effective results are obtained apparently, explosion accident of acetaldehyde oxidation tower is prevented, and yield of acetate is raised.
实施后有效地防止了乙醛氧化塔的爆炸事故，并提高了醋酸收率，取得了良好的效果。
And it can mean a toxic breakdown product of alcohol called acetaldehyde - another carcinogen - can accumulate in the oral cavity when swished around the mouth.
而且酒精的代谢产物乙醛也容易通过漱口过程在口腔中堆积，这种物质也会致癌。
Chlorohydrin production of propylene oxide with the impurities except for acetaldehyde, propionaldehyde and hydrocarbon, epoxides, halogenated alkanes, acetone, alcohols, such as.
用氯醇法生产的环氧丙烷中所合杂质除有乙醛、丙醛外，还有烃类、环氧化物、卤代烷、丙酮、醇类等。
During alcoholic fermentation acetaldehyde ACTS as a hydrogen acceptor instead of oxygen.
在这个过程中乙醛取代了氧作为氢的受体。
Objective To provide some evidence for establishing alcoholism experimental animal model by understanding the kinetic change of the rat blood acetaldehyde metabolism.
目的通过了解血液乙醛代谢的动力学变化，为建立酒精中毒实验动物模型提供依据。
A polymerization accident happened when acetaldehyde was loading. The cause of polymerization reaction was analyzed, and prevention measures were put forward, in order to guarantee loading safety.
根据一起乙醛装车时发生的聚合事故，分析乙醛发生聚合反应的原因，提出预防措施，确保乙醛装车的安全。
With the production capacity of global polyester industry increasing year after year especially in China, and improvements on recycle technology of EG and acetaldehyde, there is a big market margin.
近年来，随着全球特别是我国聚酯产能的不断增加，加上乙二醇、乙醛的回收已取得的较大进展，未来几年，聚酯废水中有机物的回收将会达到一个较高水平。
The necessary material of 2-(2-methoethyl) acetaldehyde diethyl acetal was synthesized in addition.
另外还合成了必需原料2-（2-甲氧基乙氧基）乙醛二乙醇缩醛。
Lining your stomach reduces the rate at which acetaldehyde is absorbed, meaning that symptoms of a nasty hangover are slowed to a crawl.
帮助你的胃降低酒精被吸收的速度，也就是说宿醉的症状就会有所延缓。
The main composition of this wastewater is acetaldehyde, paraldehyde, metaldehyde, pyridine and some acetaldehyde polymers.
某化工厂废水主要成份为乙醛、少量三聚乙醛、四聚乙醛、吡啶和一些乙醛聚合物。
The new synthetic process of 2 - methylimidazole with acetaldehyde, nitric acid and ammonium bicarbonate as raw materials has been introduced in this paper.
介绍了以乙醛、硝酸、碳酸氢铵为原料合成2-甲基咪唑的新工艺。
The condensation products of the amino groups in these antibiotics with acetaldehyde can easily be adsorbed on the electrode surface under a specific potential.
认为该类抗生素结构上共有的伯、仲氨基与乙醛的衍生化反应产物，在一定电位下易吸附于电极表面。
There are two manufacturing methods of pyridine bases: extraction from coal tar and catalytic synthesis from ammonia, formaldehyde and acetaldehyde.
吡啶碱的生产方法主要有两种：一是从煤焦油中提取；二是从氨和甲醛、乙醛的合成过程中获得。
The effect of yeast and yeast management on the acetaldehyde content at the end of fermentation was studied.
研究了酵母及其管理对发酵末期乙醛含量的影响。
Yeast strains had the important effect on the acetaldehyde content at the end of fermentation.
酵母菌株对发酵后期乙醛的含量影响很大。
The end-of-fermentation acetaldehyde content tended to be lower using top yeast than bottom yeast.
上面酵母比下面酵母的乙醛含量低。
Then, with acetaldehyde productivity taken as the objective function, the optimum operations are found by means of DFP method.
然后，以乙醛收率为目标函数，应用DFP法寻求最佳操作条件。
Then, with acetaldehyde productivity taken as the objective function, the optimum operations are found by means of DFP method.
然后，以乙醛收率为目标函数，应用DFP法寻求最佳操作条件。
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