查询词典 benzene

Groups in adjacent positions on a Benzene ring are referred to as being "Ortho" one to the other.

在苯环上处于相邻位置的基团，位于彼此的&邻位&上。

In this work, Near Infrared spectrum technique was used to measure the Caprolactam content in water system, the lactam content in benzene system and water content in ammonia oximate system, in the production process of Caprolactam.

近红外光谱分析技术具有快速、高效、测试费用低、重现性好、样品勿需处理，测试过程无污染的特点。

The correlations between 0Zh,1 Zh and physical and chemical properties of alkyl benzene s,such as combustion heat,parachor,boiling point,heat of vaporization,standard free energy of formation,standard entropy,molar volume,water solubility,and partition coefficient of n-octanol/water,are investigated.

基于δiz和分子图的邻接矩阵，建构一种新的分子连接性指数mZh(m=0，1)，并研究了0Zh，1Zh与烷基苯的燃烧热、等张比容、沸点、汽化热、标准生成自由能、标准熵、摩尔体积、溶解度、正辛醇/水分配系数等10种物理化学性质的相关性。

These products include sodium percarbonate, percarbamide, 4Na 2SO 4·2H 2O 2·NaCl adduct, tertiary amine oxides, hydrazine hydrate, dihydroxy benzene, quaternary ammonium salt hydrogen peroxide and methylethyl ketone oxime.

介绍了近期国外过氧化氢在部分化学品合成中应用研究新进展，产品包括过碳酸钠、过碳酰胺、4Na2 SO4·2H2 O2 ·NaCl加合物、叔胺氧化物、水合肼、二羟基苯、季铵盐过氧化氢和甲乙酮肟。

Inorganic chemistry ; hydrogen peroxide ; review ; sodium percarbonate ; percarbamide ; 4Na 2SO 4·2H 2O 2·NaCl adduct ; tertiary amine oxides ; hydrazine hydrate ; dihydroxy benzene ; quaternary ammonium salts hydrogen peroxide ; methylethyl ketone oxim

无机化学；过氧化氢；综述；过碳酸钠；过碳酰胺； 4Na2SO4·2H2O2·NaCl加合物；叔胺氧化物；水合肼；二羟基苯；季铵盐过氧化氢；甲乙酮肟；合成；催化剂；质量；安定性；收率

The invention provides an asphalt thickener that comprises metal oxide and benzene ring –containing peroxidate and is 0.05~2% to basic asphalt mass.

本发明提供一种沥青增稠剂及沥青组合物。本发明沥青增稠剂包括金属化合物和含苯环的过氧化物。本发明沥青组合物中增稠剂为基质沥青重量的0.05～2％。

Distribution of the company's products (Shanghai BrandName, export exemption) DCP, tasteless DCP BIBP bis (tert-butyl peroxy isopropyl benzene.

经销该公司的优质产品（上海名优产品，出口免检）DCP，无味DCP。

The volatile components were separated and identified using GC-MS technique. RESULTS Seven ingredients were. isolated: 2-ethyl-hexyl-adipate (66.5%), 1-methoxy-4-(1-propenyl)benzene (12.5%), isopropyl isothiocyanate (6%), isobutylisothiocyanate (6%), 6-methyl-5-heptene-2-one (3.5%), benzaldehyde (1.4%), phenylacetaldehyde (0.8%).

结果 分离出7个成分，采用峰面积归一化法确定了各成分的相对含量，分别为66.5%双－2-乙基己基－己二酸、12.5%1-甲氧基－4-（1-丙烯基）苯、6%异硫氰酸异丙酯6%、6%异硫氰酸异丁酯、3.5%6-甲基－5-庚烯－2-酮、1.4%苯甲醛、0.8%苯乙醛。

The results show that the toxicities of chloranlines to Photobacterium Phosphoreum are increased as the increase of sum of the net electric charge on the benzene ring.

结果表明：SQR值越大，即化合物苯环上的正电性越强，则氯苯胺类化合物对Photobacterium Phosphoreum的毒性就越大，据此可预测化合物的毒性。

Through analyzing the mechanism of the photochlorination of m-chloromethyl benzene in the side chain, the kinetic models of the consecutive reaction were built.

通过对间氯甲苯侧链光氯化反应机理的分析，建立了间氯甲苯光氯化连串反应动力学模型。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。