苯系

Benzene series compound ; biological degradation ; aerobiosis biology degradation

苯系化合物；生物降解性；好氧生物降解

To establish gas chromatography for the determination of benzene series in the quality control samples.

目的 建立质控样品中苯系物的气相色谱测定方法。

Objective To assess the effects of three way cotalytic converter on the health risk of benzene series.

目的 比较三元催化器催化前后汽油机中苯系物排放的健康风险的改变情况，探讨健康环境风险评估方法在汽油机排放物健康效应评价中的可行性。

Using solvent relief absorption gas Chromatography to estimate the concentration of the Benzene and benzene series in the room air.

采用气相色谱法测定室内空气中的苯和苯系物。

Through the analysis of the experimental results, we can conclude that during adsorption and reaction the performances of isobutane and butene are remarkably differant.

结果发现，失活催化剂上的积炭组成主要是C〓～C〓的大分子烃类物质以及一些苯系和萘系芳烃类物质，其平均H/C原子比略大于2.0。

Learn aminolysis of hydroxyl group on aromatics, including the aminolysis of phenol and naphthol.

了解芳环上羟基的氨解，包括苯系酚和萘系酚的氨解

Methods CBP 20 capillary column was used and the temperature was increased with a program to separate and determine 7 kinds of benzenes series,namely,benzene,toluene,ethylbenzene,p-xylenol,inter-xylenol,cinnamene and ortho-xylenol.

利用CBP-20毛细管色谱柱，采用程序升温实现苯、甲苯、乙苯、对二甲苯、间二甲苯、苯乙烯、邻二甲苯等7种苯系物的分离测定。

The content of benzene compounds extracted by methane dichloride from the leavy surfaces of trees inside the factory areas reached to 88. 33 mg/kg, the levels of benzene, methylbenzene and dimethylbenzene were 36. 680 mg/kg, 10. 22 mg/kg and 41.43 mg/kg respectively in the coking factories.

厂区内植物叶片表面二氯甲烷提取物中苯系物含量高达88.33mg/kg，其中苯36.680mg/kg，甲苯10.22mg/kg，二甲苯41.43mg/kg。

In the third chapter, the photoabsorption of NO, CO, acetonitrile, acrylonitrile, benzene and toluene of benzene series have been measured by using a homemade experimental apparatus of cylindrical multi-stage ion chamber with high flux SR source. The ionization energies of some electron states are given. Their superexcited states, autoionization Rydberg states have been analyzed. By the analysis and comparison, our results are accurate and credibility.

在第三章中，利用高通量的同步辐射光源和自制的多级光电离吸收池装置，测量了NO、CO、乙腈、丙烯腈、苯系物中的苯和甲苯的光吸收谱，给出了部分电子态的电离能，分析了其中的自电离Rydberg态结构和一些振动能级，对部分结构做了精确指认，经过分析和比较，我们所得的结果比较精确和可靠。

The average recoveries of benzene, toluene,-xylenes, o-xylene are from 97.21% to 103.10% and the RSDs are from 0.12% to 0.95%. And the average recoveries of Phthalic acid ester are from 96.01% to 102.02% and the RSDs are from 0.92% to 2.46%.

2采用PTFE膜过滤前处理法，首次建立了涂料中苯系物和邻苯二甲酸酯类环境激素的同时测定方法，并对分析方法作了准确度、精密度以及实验室间验证。

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。