苯系

This method is accurate in the quality control assessment of the standard samples of benzene series; it is applicable for the detection of denzene toxicants in the air of workplaces.

方法应用于苯系物环境标准样品的质控考核，测定结果均在保证值范围内，准确度高。适用于工作场所空气中苯系毒物的检测。

Objective To know the current status of the benzene series pollution in the indoor air in newly decorated houses in Beijing and analyze its dynamic changes in order to find the changes rule of benzene series level.

目的调查北京市居室内装修后苯系物的污染状况，分析苯系物浓度随各影响因素的变化，探讨苯系物的动态变化规律。

Oct.,2005. Results The monthly average concentrations of benzene series in six months after decoration changed obviously while the temperature and time changed.

结果苯系物浓度随时间、温度的变化有统计学意义，随装修后间隔时间的延长，空气中苯系物浓度逐渐下降，4个月后达到国家标准限值的要求。

The detection limit is 3.25×10-9g. It was found that the methods of double capillary GC were simple and efficient for identification and detection of homologous series of benzene in environmental water.

结果表明，所建立的双毛细管柱定性定量分析苯系物方法，具有简便、灵敏、准确、线性范围宽的优点，适合于水中痕量苯系物的监测分析。

Methods After collecting the benzene series in the air inlet and air outlet of the three way catalytic converser in 100% working loads, their health risk was assessed with the methods of health risk assessment.

采集分析100%负荷下三元催化器进气口和出气口中苯系物的浓度，利用健康环境风险评估方法比较催化前后苯系物健康风险的变化。

C. I. Reactive blue KN-R, Alizarin brilliant green G and Hostlam blue R could not be degraded by Zoogloea HP3. Furthermore, ABAS degradation was regressed under the exisitence of the above dyes. 1-Aminoanthraquinone-2sulfonic sodium, 1, 4-dihydroxylanthraquinone-2-sulfonic sodium, 1, 4, 5, 8tetrahydroxylanthraquinone, anthraquinone, aniline, phenol, catechol and ophthalic acid could be degraded by Zoogloea HP3. Aniline was the most degradable substrate among ABAS, aniline, phenol, catechol and o-phthalic acid. However, benzenesulfonic sodium and p-amino benzenesulfonic sodium were not degraded by it.

动胶菌HP3不能降解活性艳蓝KN-R、弱酸性绿GS及毛用活性蓝HW-R等蒽醌型染料，且染料的存在对菌体降解溴胺酸有不同程度的抑制作用；动胶菌HP3可以降解1-氨基蒽醌-2-磺酸钠、1，4-二羟基蒽醌-2-磺酸钠、1，4，5，8-四羟基蒽醌、蒽醌及苯酚、邻苯二酚、苯胺、邻苯二甲酸等苯系化合物，而不降解苯磺酸钠、对氨基苯磺酸钠；在溴胺酸、苯酚、邻苯二酚、苯胺、邻苯二甲酸中，苯胺是动胶菌HP3的天然底物。

The absorrption of benzoid compound by activated carbon fiber was studied. In theexperiment, the influence of the rate of filtration to the purification effeciency was researched. On the basis of summarizing the principle, advantage and recent research on watertreatment by the activated carbon fiber, adsorption performance of three activated carbons(fibrous, granulose, and powdery) were studied.

选用粘胶基活性碳纤维吸附废气中苯系物，考察了吸附过程中滤速对净化效率的影响，结果表明：滤速为0.20m／s以下时，活性碳纤维对废气中苯系物的净化效率达到90％以上；滤速为0.22m／s时，其净化效率有所下降，净化效率由大到小依次为邻二甲苯、甲苯、苯。

Benzene homologues in air of workshops were preconcentrated with the activated charcoal sampling tube, and then desorbed with carbon disulfide.

用活性炭采样管富集车间空气中的苯系物，以二硫化碳为解吸剂，经毛细管柱GC MS选择离子法测定样品中苯系物，峰面积定

The logarithm difference values of partition coefficients of the compounds in butyl ether/water and in cyclohexane/water system were used for the measurement of the Lewis acidity, while the logarithm difference values of partition coefficients in trichloromethane/water and in tetrachloromethane/water system were used for the measurement of the Lewis basicity, and they were used successfully to differentiate the relative strength of Lewis acidity and basicity for 59 benzene and its derivates.

以化合物在正丁醚/水和环己烷/水溶剂体系中分配系数的对数差作为酸性指数，以其在氯仿/水和四氯化碳/水溶剂体系分配系数的对数差作为碱性指数，提出了一种新的度量有机物Lewis酸碱性的方法，按此方法成功地区分了59种苯系物Lewis酸碱性的相对强弱；并成功地将上述酸碱性指数引入定量结构—性质/活性相关研究之中，探讨了苯系物的正辛醇/水分配系数、水溶解度和土壤有机碳吸附系数等常见理化性质与其Lewis酸碱性间的相关性并建立了相应的定量模型，发现它们之间存在良好的相关性。

And the effects of the tooth wheel number on the removal efficiency,the COx formation and the energy efficiency were investigated.

采用正极性高压直流供电和串齿线放电极——管式接地极构成的放电等离子体反应器，研究了苯系物去除效率与供电电压之间的关系，以及放电极齿轮数对苯系物去除效率、COx(CO2+CO)生成量和能量效率的影响。

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。