苯系

The mean recovery of fourteen homologous series of benzene is 85%, and the relative deviation is below 5%.

本方法对十四种苯系物的总平均回收率为85%，相对标准偏差在5%以下，最低检测限达3.25×10－9g。

Methods 54 houses were randomly chosen in Beijing to monitor their benzene series levels during Apr.

方法于2005年4—10月，在北京市随机抽取54户新装修的居民，入户监测其室内装修后半年内空气中苯系物的浓度。

All the indices met the demands of environmental quality standards of surface water and the method was suitable for the analysis and determination of benzene series in surface water.

各指标均符合地表水环境质量标准的要求，适合地表水中苯系物的分析测定。

Results The benzene series concentration of indoor air was gone down rapidly in 2 months.

结果 苯系物浓度在装修后两个月呈快速下降趋势，而降低到0.2～0.3mg/m3时，则降低趋势缓慢。

To investigate the indoor pollution in newly decorated rooms in order to find out the trends of benzene series and formaldehyde pollution and the influence on health of residents.

摘 要：目的了解目前居室装修后的空气污染状况，掌握室内空气苯系物和甲醛浓度动态变化的趋势和规律，及其对人群的健康影响。

Benzene series in surface water was detected by purge and trap gas chromatography - mass spectrometry.

采用吹扫捕集和气相色谱-质谱联用对地表水中苯系物进行检测。

There is much bacteria which can degradate benzene series compound ,also there's some which can degradate ortho-xylene.

研究结果表明，EJD— 1对甲苯有较好的降解效果，活性污泥中有大量苯系化合物的降解菌，也有难降解污染物邻二甲苯的降解菌。

The concentration of benzene series compounds, formaldehyde and TVOC was determined, a survey and analysis of air pollution inside the car was conducted.

于2008年1-7月选择不同车型和车龄的小汽车35辆，进行车内空气中苯系物、甲醛和总挥发性有机物的检测，并分析影响因素。

The relative standard deviation was within 6.2%. The contents of benzene series in sediments were betw een 3.79 and 17.36 μg/g.

测得海洋沉积物中的这些苯系物的质量比范围为3.79～17.36 μg/g。

Objective To find out the association between the indoor formaldehyde, benzene series pollution and the plank material, decoration time, well ventilated etc, and provide scientific basis for choosing suitable time to live after decoration.

目的 了解装修后室内甲醛、苯系物污染状况与装修时间、板材使用量、通风等因素之间的关系，为装修后科学选择入住时间提供依据。

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。