查询词典 aromatic compounds

Part II: The structural modification of norcantharidin and the discovery and applications of NCS-DMSO combinatorial system: A series of derivatives of 5,6-dehydronorcantharidin was transferred into their corresponding 5,6-epoxynorcantharidin derivatives with Oxone, and finally 14 new compounds have been synthesized; and we also discover the novel combinatorial system NCS-DMSO to make N-aromatic substituted norcantharidin amic acids to their corresponding imides in high yields.

利用十分廉价的Oxone为氧化剂，成功的得到了14个5，6-环氧去甲斑蝥素系列衍生物；同时我们意外地发现了NCS-DMSO组合体系可以使去氢去甲斑蝥素酰胺类化合物实现分子内脱水而生成亚胺类化合物，首次发现和运用该全新的组合体系实现了该类反应。

The principal component of water-soluble acids is the saturated aliphatic diacids of C〓 to C〓 and the saturated aliphatic monoacids of C〓 to C〓; and the water-insoluble acids are organic macromolecular compounds containing a large amount of carbonyl, carboxyl structures and aromatic group.

水溶酸的成分以C〓~C〓的饱和二元脂肪酸和C〓~C〓的饱和一元脂肪酸为主；水不溶酸是含有大量羰基、羧基结构和芳环的有机大分子化合物，其结构非常接近腐植酸。

Another important group of petrochemical raw materials are the aromatic compounds, principally benzene, toluene and xylenes, which are mainly produced by catalytic reforming.

另一组重要的石油化学品原料是芳香烃化合物，主要是苯、甲苯和二甲苯，主要由催化重整制得。

Sixteen compounds were identified at more than 3 stages, in which 14 terpenoid compunds, 1 aromatic compound and 1 amine compound.

有16种化学成分在3个以上时期能检测到，其中14种萜类化合物，1种胺类化合物和1种芳香化合物。

Terpenoid compounds from aromatic plants have been found to inhibit asparagine synthetase. Chemically synthesized 1,4-cineole derivatives display a degree of weed control activity.

在芳香族植物中发现单萜化合物有抑制天冬酰胺合成酶的作用，化学合成1，4-桉树脑衍生物也有一定除草活性。

Early in 1990s abroad, there had been reported on substitutes of chlorinated hydrocarbon solvent type paint remover, selection of nonvolatile ester and aromatic compounds was a hot spot of the researches. Meanwhile, the development of paint remover of emulsifier system had also witnessed a great progress.

国外早在上世纪九十年代就己经有氯化烃溶剂型脱漆剂的替代品报道，选用非挥发性的酯及芳香化合物是其中的一个研究热点；同时，乳化体系的脱漆剂开发也有了很大的发展。

2 Petroleum crude oil: Refers to naturally occurring crude oil that is mixtures of hydrocarbon compounds that contain mainly paraffin hydrocarbon, cycloparafin hydrocarbon, and aromatic hydrocarbon.

二石油原油：指一种源于自然界之原油，为碳氢化合物之混合物，其主要成分为石蜡烃、环烷烃、芳香烃等。

2 Petroleum crude oil: Refers to naturally occurring crude oil that is mixtures of hydrocarbon compounds that contain mainly paraffin hydrocarbon, cycloparafin hydrocarbon, and aromatic hydrocarbon.

二石油原油：指一种源于自然界之原油，为碳氢化合物之混合物，其主要成分为石蜡烃、环烷烃、芳香烃等。你知道它的英文吗？

Experimental results showed that aerosol created by 1,3,5-trimethylbenzene photooxidation can be classify with five distinct chemical particle classes, the predominant components of these five particles are aromatic aldehyde, phenol, nitrophenol and carboxylic acid compounds.

利用该算法对OH自由基启动1，3，5-三甲苯光氧化形成的二次有机气溶胶单粒子质谱数据进行了聚类分析，在得到的五个聚类中包含了芳香醛、酚类化合物、硝基酚和羧酸等重要的光氧化产物，为研究苯系物光氧化机理提供了新的信息。

With the oxidative rate of four aromatic compounds catalyzed by SLO under different conditions, the inhibitive rate and the 50% inhibitory concentration of these antioxidants for the oxidations were calculated, respectively.

根据不同条件下SLO对四种芳香化合物氧化的速度，计算出各调节物对SLO介导这类化合物氧化的抑制率及半数抑制浓度。

Cable dampener cannot be rolled up but must be hung over the cable.

缆帆不能被卷起，必须保证处于展开状态

"This skylark is a present from my master," he says.

"这只云雀是我主人献上的礼物。"他说。