查询词典 benzene

The best yields are obtained if the ether solvent is distilled from the Grignard under vacuum and replaced with hydrocarbon solvent, such as benzene.

最好的产量得到醚溶剂，如果是从格氏蒸馏真空和烃类溶剂，如苯，取代。

96H LC 0,96 h LC 50 ,and 96 h LC 100 of twelve chemicals of phenol ,alkyl benzene and nitrobenzene,and three water samples to sword fish(\%Xiphophorus helleri)\% and rare minnow(\%Gobiocypris rarus\%) were tested.3. The phenol ic waste water was purified through the absorption of polyvingl pyridine.

介绍了含酚废水与聚乙烯基吡啶类树脂接触，酚类会吸附在树脂上，使废水得到净化，然后将吸附了酚类的树脂加热处理回收酚，与此同时，对树脂也进行了再生处理，再生后的树脂可循环使

The equilibrium and dynamics of benzene and toluene of low concentration in heptane adsorbed by molecular sieve-NaY were studied.The Langmuir?

研究并比较了NaY分子筛对正庚烷中低浓度苯、甲苯的吸附平衡及动力学。

Where necessary, nitrogen heteroatom substitution in a six-membered ring was modelled by alteration of the heat of formation by the same amount as benzene to pyridine conversion.

硫磺桥梁在phenanthro[4，5-bcd]thiophene 由转换塑造了从氧气桥梁在4H-cyclopentaphenanthrene 成硫磺桥梁使用区别在丁烷和dimethylthioether 之间。

The luminescent property of these materials was relative to the twisted angle between two benzene rings of the bridged biphenyl. The crystal structures of a series of seven-member heterocycle bridged biphenyls were determined by X-ray diffraction.

利用X射线单晶衍射仪确定了系列功能的七元杂环桥联联苯化合物的晶体结构，比较了桥联原子，6，6位取代基及分子间弱氢键对这类桥联联苯扭曲构象的影响。

The results show that the compound conductive fiber has typical structure of sheath-core consists of black greened polyaniline electric conductive deposition as the skin and the white polypropylene matrix fiber as the core, which makes the compound fiber preferable physical mechanical property. The intensity and the elongation ratio of the electric conductive fiber are decreased but the thermal stability is enhanced after modified. The compound fiber has the good acid resistance but poor base resistance. The thermal stability of the compound fiber prepared by 4-methyl-benzene sulfonic acid is better than that prepared by hydrochloride acid. Moreover, the compound fiber can be re-doped by other organic or inorganic acid after freed from the adsorbed acid. Furthermore, the electric conductivity of the compound fiber decreases with the temperature increasing but hardly changed with the humidity. The adsorptive ability and therefore the content of the polyaniline, the constant of electric conduction, and the durability of the compound fiber can be enhanced by thinning the diameter, section heteromorphosis, section heteromorphosis and plasma treatment of the surface or blending with COPET of the fiber.

结果表明：复合纤维是聚丙烯与聚苯胺的共混体系，具有典型的皮芯型结构，皮层为墨绿色的聚苯胺沉积层，形成连续的导电通道，芯层为白色的聚丙烯基质纤维，提供物理机械性能；导电改性后纤维的强度、强力和伸长率均有下降，但热稳定性得到提高；复合纤维的耐酸性比耐碱性好，以对甲苯磺酸做掺杂酸比盐酸掺杂聚苯胺热稳定性好，脱掺杂后的复合纤维，可用其它无机酸或有机酸进行再掺杂；复合导电纤维的电导率随温度升高降低幅度较大，但几乎不受湿度影响；基质纤维细旦化、截面异形化、表面等离子体处理或共混COPET等改性处理均能提高纤维的吸附性，进而提高复合纤维表面聚苯胺含量、电导率和耐久性。

Carbon hollow nanosphers were synthesized at 200oC, using magnesium and hexachloroethane as reactants, aluminum chloride as catalyst and benzene as solvent.

采用格氏试剂法，在温度200℃，反应时间12个小时下，以六氯乙烷为原料，苯为溶剂，铝作还原剂，无水氯化铝为路易斯酸。

The corrosion inhibiting ability of sodium dodecyl benzene sulfonate and hexamethylenetetramine as additives are also studied.

结果表明：在KOH溶液中，镁合金保持强烈的惰性，镁合金在其中放电困难。

As a result, an appropriate condition for benzene molecules dissolving homogeneously in supercritical water is recommended.

通过分析得出了苯在超临界水中亲水的结论，并推荐了较为适宜的亲水超临界条件。

In the pyrolysis of nalkanes process, abundance of benzene and its homologue show significantly increasing, which can be used as potential distinguishing marks of crude oil cracking.

在正构烷烃的裂解过程中，苯及其同系物的丰度呈明显增加趋势，可以作为原油裂解程度的潜在判识标志。

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。