查询词典 acetaldehyde

OBJECTIVE Acetaldoxime was prepared by using acetaldehyde and hydroxylamine sulfate as main materials then methylthio acetaldoxime was synthesized by using the former products as main material.

目的本文研究了以乙醛和硫酸羟胺为主要原料合成乙醛肟，并以乙醛肟为原料合成甲硫基乙醛肟的工艺。

Simple examples of aldehydes are methanal and ethanal (acetaldehyde, CH3CHO).

简单的醛有甲醛和乙醛（ CH3CHO ）。

The present artical provides a process for the production of pure acetaldehyde oxime by the principle of aceotropic extraction and the selected solvent.

介绍了通过所选用的溶剂，利用共沸萃取原理，制取纯乙醛肟的工艺过程。

The method of preparing acetaldehyde oxime is developed with hydroxycamine sulfate from sodium nitrite and sulfur dioxide,and the optimal condition is also given.

研究了以亚硝酸钠和二氧化硫为原料，经硫酸羟胺合成乙醛肟的方法。

According to state corrosion rate experiment,it is possible that acetaldehyde oxime is reducer in the oxidation solution,and its result is very good in the boiler acid cleaning of some power plant.

根据静态腐蚀速率试验，证明乙醛肟在氧化性溶液中用作还原剂是可行的。

According to the product distribution of microwave-assisted photooxidation of acetaldehyde, the mechanism for MW-assisted photocatalysis was proposed.

采用高频微波与紫外光耦合，发现微波辐射对光催化反应过程效率主要是受"非热效应"，而非"热效应"的影响，并探讨了作用机制。

The response to single compound: To both females and males, the compounds that elicit larger responses of adults are benzaldehyde, benzene acetaldehyde, hexanol,β-phenyl ethyl alcohol, benzyl alcohol, cyclohexanol and eugenol. Phytol, 2-methyl-cyclohexanone and β-caryophyllene reveal to have weaker activity.

对单一化合物的反应：两种昆虫，不论是雌蛾还是雄蛾，能引起较强EAG反应的化合物均为苯甲醛、苯乙醛、正己醇、β-苯乙醇、苯甲醇、环己醇和丁香酚，植醇、2-甲基环己烷和β-石竹烯仅能引起微弱的EAG反应。

The decanoyl acetaldehyde was reported very unstable, it was easy to decompose or polymerize.

文献报道鱼腥草素质量很不稳定、易发生分解或聚合。

Acetaldehyde An aldehyde, CH3CHO, that is an intermediate in the conversion of pyruvic acid to ethanol during the final stage of glycol sis during anaerobic respiration in plants.

乙醛：乙醛CH3CHO，在植物无氧呼吸的最后一个环节－糖酵解中把丙酮酸转化为乙醇的中间体。你知道它的英文吗？

These results suggest that ethanol be the major factor in dysfunction of brain development whereas acetaldehyde plays critical roles in other organ teratogenesis.

上述结果提示FAS中的脑发育异常是乙醇独立作用的结果，乙醛则引起FAS中的辅助畸形。关键词醇，乙乙醛胚胎发育胎儿酒精综合征联合作用

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。