查询词典 benzene

Results Levels of Benzene, toluene and dimethylbenzene was highest in the first 30 days after decoration????

结果 苯系物的浓度在装饰后30d以内最高，以后逐渐降低。

Benzene, toluene, dimethylbenzene can be complete mineralized into CO2 and H2O, without producing new organic materials.

苯、甲苯和二甲苯最后都完全矿化为CO2和H2O，没有生成新的有机物。

Methods 151 cars used for different periods of time were selected and the concentrations of formaldehyde,benzene,toluene,dimethylbenzene and TVOC were detected.

方法选择使用不同年限的151辆小汽车，分别测定车厢空气中甲醛、苯、甲苯、二甲苯、TVOC的浓度，同时对驾驶人员的不良反应进行调查。

Objective To establish a gas chromatography method which will be suitable for determination of one time of the benzene, toluene, dimethylbenzene in the adhesives.

目的 建立适用于同时测定常用溶剂型胶粘剂中苯、甲苯、二甲苯含量的气相色谱分析方法。

The method is accurate, feasible and suitable for determination of the benzene, toluene, dimethylbenzene in the adhesives.

RSD为1.60%~2.85%。结论该方法适用于同时测定常用溶剂型胶粘剂中苯、甲苯、二甲苯的检测，方法准确、可靠。

Methods The time-weighted average concentration Short-term exposure limits of benzene and toluene and dimethylbenzene in 10 furniture factories were measured.

对10家家具厂工作场所中苯、甲苯、二甲苯进行时间加权平均浓度和短时间平均浓度测定。

Methods To detect benzene,methylbenzene, dimethylbenzene ,and formaldehyde levels in indoor air of 48 rooms decorated in different seasons.

方法在春夏季(4~9月)和秋冬季(1~3月，10~12月)选择装修完毕3个月左右尚未入住的居室48户，检测室内空气中的苯、甲苯、二甲苯和甲醛浓度，并进行比较。

The quantitative analysis of the mixture of butyl acetate, dimethylbenzene and benzene is done with gas chromatography, taking methyl formate as internal standard.

采用气相色谱法，以甲酸甲酯为内标物，对在所研制催化剂作用下氧化反应前后的醋酸丁酯、二甲苯和苯进行了一次定量分析。

The method is mainly according to GB/T 11737-1989 "sanitation test standard method for benzene, toluene and dimethylbenzene in air for residential area, gas chromatograph method".

本方法主要依据GB/T 11737-1989《居住区大气中苯、甲苯和二甲苯卫生检验标准方法气相色谱法》。

Results The exceed standard rates of benzene, methylbenzene, dimethylbenzene, formaldehyde in indoor air were 11.39%, 14.58%, 7.64% and 38.17% respectively.

结果 室内空气中苯、甲苯、二甲苯和甲醛的超标率分别为11.39%、14.58%、7.64%和38.17%。

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。