查询词典 aromatic

One exception is the decarboxylation of aromatic carboxylic acids.

芳香羧酸进行脱羧反应是一个例外。

The existence of aromatic ring reduces the rates of thermal and thermal-oxidative decomposability during high temperature stage.

芳香环的存在降低了树脂体系高温阶段的热分解和热氧化分解的速率。

The results showed that the preoxidation of PPESK was a free radicals reaction,which was initiated by the decomposition of proton in aromatic ring and sulfone functional group and the removal of H_2O and SO_2.When the preoxidation temperature was above 460℃,the radical reaction was initiated by the decomposition of ketone functional group and the removal of CO_2.At last,the three-demensional cross-linking structure containing polyaromatic ether and biphenyl was formed.

研究表明，PPESK的预氧化过程是一个自由基反应过程，始终伴随着芳香环质子和砜基官能团的脱除引发的自由基交联反应，脱出H_2O与SO_2；当预氧化温度超过460℃后，随着反应的进行，由羰基官能团分解引发的自由基交联反应开始发生，脱出CO_2，并最终形成了含有大量聚芳醚和联苯结构的稳定的三维空间网状结构，进而完成PPESK由热塑性材料向热固性材料的转化。

The results provided valuable references for studying microbiological degradation mechanism in the reactor, and enriched microbial resources of nitrogen-containing aromatic degrader.

研究结果为含氮芳烃废水处理研究提供了一些有价值的参考依据，并丰富了含氮芳烃废水降解菌资源。

A tablet containing aromatic substances that is burned to fumigate or deodorize the air.

芳香剂含有香料，燃烧后可用来进行空气消毒或防嗅的片剂

Air freshener HR-111 This product is based on newest water base system and prepared from fine aromatic chemicals,it can be widely applied to hotel,restaurant and other public places,it can deodorize,sterilize and cleasen air,which contributes to a clean and pleasant environment.

客房系列空气清新剂 HR----111 本品是采用最新的水基体系及选用上等香精精制而成，广泛用于宾馆、饭店等公共场合，使用本剂可使环境香化，具有灭菌、除味、净化空气之功效，保持环境幽净。

In recent years aromatic diamine derivatives with good photoluminescent and hole transporting properties have been widely used in organic electroluminescence devices.

芳香多胺系化合物不仅是重要的有机染料，而且具有良好的光稳定性和极好的传输性能，近年来已引起研究者的兴趣和关注。

The invention relates to a synthesis method of aromatic diamine monomers, in which object products are obtained by condensation and reduction.

本发明涉及芳香族二胺类单体的合成方法，通过缩合、还原得到目的产物。

Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts.

大多数连于芳核能被直接取代的基团仅限于重氮盐。

The paper discloses a process for diazotization fluorination of aromatic primary amines utilizing sodium nitrite and anhydrous hydrofluoride to produce the corresponding diazonium fluoride which is decomposed, usually by heat, to make the desired fluoroaromatics .

本文通过重氮化工艺路线的改进，在液态氟化氢中进行重氮化和重氮盐的热分解，提高了芳香族氟化物的收率，并且使重氮化反应工艺能应用于工业化生产。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。