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%。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。