查询词典 benzene

It was shown that deresination of crude montan wax depends mainly on the wax concentration in benzene solution, cooling rate, final cooling temperature and addition of seeds erc,of which wax concentration and final cooling temperature were the most important.

考察了粗褐煤蜡脱树脂的主要影响因素—含蜡苯溶液的浓度、冷却速率和最终

The selectivity to benzene and naphthalene in liquid products showed different tendency with the deactivation of catalyst.

在973K下，液体产品中苯的选择性与萘的选择性随着催化剂的失活呈现不同的变化趋势。

After the use niter benzene even treatment and the treatment all around, separately makes the electroencephalogram inspection to two groups of case of illness.

在使用硝苯地平治疗和治疗4周后，分别对两组病例均作脑电图检查。

Results: After the use niter benzene even treatment all around, the treatment group electroencephalogram restores quickly to the comparison group, exceptionally leads obviously to be lower than the comparison group.

结果：使用硝苯地平治疗4周后，治疗组脑电图恢复快于对照组，异常率明显低于对照组。

The niter benzene is even is treats the recovery period fluorine acetamide to be poisoned patient's effective method, may enable his/her the brain harm to obtain the as soon as possible repair, improves the brain function, makes the unusual electroencephalogram to restore normal or the change for the better as soon as possible.

硝苯地平是治疗恢复期氟乙酰胺中毒患者的有效手段，可使其脑损害得到尽快修复，改善脑功能，使异常的脑电图尽早恢复正常或好转。

Experimental results show that the different substituted location and different substituted group on benzene cycle would result in the diversity of reduction properties of substituted aryl nitrobenzene. Substituted nitrobenzenes with withdrawing group will be reduced at more positive potential, while those with repelling group will be reduced at more negative potential. In addition, the reduction potential of nitro group of o-nitrobenzene shifts more negative due to the effect of space resistance.

结果表明，芳族硝基化合物在苯环上的取代基位置不同以及在相同位置上取代基的种类不同均可使各芳族硝基化合物的电还原性能发生较大差异：吸电子取代基在电还原过程中电位较正，推电子取代基的电还原电位较负：邻位取代基在反应过程中由于空间位阻效应，苯环上的硝基在电还原时电位往负方向移动。

Two classes of specific binding sites in the polymer matrix were investigated by Scatchard analysis, which indicated that two kinds of complexes between functional monomers and templates were formed before the polymerization process. Comparing with the structure of TNT and acrylamide, one kind of complex between TNT and acrylamide was strongly charge-transfer complexing interaction by p-πcomplex between electron-rich amino group of acrylamide and electron-deficiecy-benzene ring of TNT, the other was hydrogen bonding interaction between amino group (-NH_2) of acrylamide molecule nitro group (-NO_2) of TNT.

Scatchard分析结果表明，在TNT印记聚合物微球中存在两类结合位点，这表明在聚合反应之前，TNT与功能单体丙烯酰胺分子之间存在两种不同类型的作用力而自组装成两类的模板分子-功能单体复合物，一类可能是由于富电子的丙烯酰胺和缺电子的TNT的苯环通过p-π配键而形成的电荷转移复合物，另一类可能是由于丙烯酰胺的胺基与TNT的硝基之间的氢键作用而形成的复合物。

We described that the nitro group is a stronger electron withdrawing and meta activating characters than the imide group, the amino and hydroxy are both electron donating groups and had ortho, para activating characters. The methyl group might have a steric hindrance effect in this reaction. Our results indicated that methyl group at the ortho position of the amino group on the benzene ring, the steric hindrance effect became stronger.

另一方面，由产率上的结果来看，可以得知硝基为强力的拉电子基团，会减少邻位和对位胺基的电子密度比间位多；而氢氧基与胺基是供电子基团，会增加邻位和对位胺基的电子密度比间位多；甲基取代对反应则只有立体障碍的影响，而且与反应的氨基成邻位存在下影响最大。

Immunosuppressant: such as azathioprine, cyclosporine A, leflunomide, benzene acid, such as nitrogen mustard.

免疫抑制剂：如硫唑嘌呤、环孢菌素A、来氟米特、苯丁酸氮芥等。

Paper through to 6 '- nitryl yinduolin spiral benzene and pinan the synthesis, understands the spiral pinan color change.

论文通过对6'—硝基吲哚啉螺苯并吡喃的合成，来了解螺吡喃变色性。

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。