查询词典 xylene

-3-Alkenoic acids were synthesized by Knoevenagel reactions of aliphatic aldehyde s with malonic acid in xylene under reflux.

以脂肪醛与丙二酸为原料，通过Knoevenagel反应制备了-3-烷烯羧酸，反应以二甲苯为溶剂，在回流条件下进行。

Cellulose carbamate was synthesized in xylene as solvent with microcrystalline cellulose and urea as raw materials.

以微晶纤维素和尿素为原料，二甲苯为溶剂合成了纤维素氨基甲酸酯。

In addition, the optical microphotography showed that the dispersion of methylolated MWCNTs in water was improved significantly. And then, the dispersion of the grafted MWCNTs in xylene was enhanced remarkably.

光学图像分析表明，经甲醛处理后的MWCNTs在水溶液中的分散性明显提高，而马来酸酐酯化接枝后的MWCNTs在二甲苯中的分散性明显增强。

The plant can absorb formaldehyde include cacti, Chlorophytum,扶郎to spend, reeds, ivy, Tieshu , chrysanthemum, etc.; the flowers and the elimination of xylene have ivy, Tieshu, chrysanthemum, etc.; Monstera: Turtle Cove, also known as banana, pont to banana, wire-lian, through Liuzhou palm, evergreen vine.

可以吸收甲醛的植物有仙人掌、吊兰、扶郎花、芦苇、常春藤、铁树、菊花等；而消除二甲苯的花草则有常春藤、铁树、菊花等；龟背竹：又名龟背蕉、蓬来蕉、电线莲、透龙掌，常绿藤本植物。

The aromatic position isomers, such as xylene and nitrotoluene, were separated well. Moreover, some chiral compounds including alcohol, amine, ester etc., were also resolved.

不但对二甲笨、硝甲苯等难分离的芳香族位置异构体，而且对醇、胺、酯等多种类型的手性异构体均有很好的分离能力和手性选择能力。

A dynamic generating toxic gas system and a nose-only exposure system were used for the pharmacokinetic study of inhaled environmental contaminants for benzene, toluene, xylene, ethylbenzene,chlorobenzene, styrene, isopropyl benzene, tetrachloroethylene, nonane and methylcyclohexane in male guinea pig.

用动态配气设备和鼻式吸入方式染毒，采用雄性豚鼠对环境中10种挥发性污染物(苯、甲苯、对二甲苯、乙基苯、氯代苯、苯乙烯、异丙苯、四氯乙烯、甲基环己烷和壬烷混合物)的吸入动力学进行了研究。

The gas phase oxidation of o-xylene to phthalic anhydride at low oxygen concentration was studied.

近年来，国外对邻二甲苯氧化制苯醉的高负荷催化剂进行了大量的研究工作，其中V-Ti系催化剂得到广泛的应用

The optimal technical conditions of the later were that cuprous chloride and 1,10-phenanthroline were used as catalyzer, the molar proportion of catalyzer and 4,4′-diiodobiphenyl was 0.15:1, and the reaction mixture was refluxed for 7h in the solvent of xylene at 150℃.

后者的适宜工艺条件为以二甲苯作溶剂，氯化亚铜和邻菲咯啉为催化剂，催化剂与4，4′-二碘联苯的摩尔比为0.15∶1，在150℃下回流反应7h。

Sebacic acid, decanedioic acidA mixture of xylene isomers used as a solvent in making lacquers and rubber cement and as an aviation fuel.

二甲苯混合物一种用作溶剂的含有二甲苯的混合物，用来制作漆和橡胶黏合剂，以及航空燃料

Then the condition and the catalyst of the reactions were confirmed. The characteristic analysis result of products reveals that the coatings has the advantages of the short drying time, good water resistance and high solidness .If it can be applied in practice, we can get rid of pollution of the traditional coatings which contains poisonous reagent which is composed of toluene and xylene.

本文对上述工艺中所涉及到的各步反应都作了详细的讨论，确定了反应的条件和催化剂，并对所得实验室产品进行了分析，结果发现，该涂料具有干燥时间较短，耐水性、硬度较好的特点，我们希望它能够得到实际的应用，使传统涂料摆脱工业用甲苯、二甲苯有毒试剂的污染物的困扰。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。