1·Polycyclic aromatic hydrocarbons are a group of ubiquitous pollutants.
多环芳烃是一类普遍存在的环境污染物。
2·The aromatic hydrocarbons content in naphtha was analyzed by a chemical reaction method.
用化学分析方法测定了工业用石脑油中芳香烃的含量。
3·The green indicates the presence of complex molecules called polycyclic aromatic hydrocarbons.
绿色则表明了大分子多环芳香烃的存在。
4·On Earth, polycyclic aromatic hydrocarbons are found on burnt toast and in automobile exhaust.
在地球上，烤糊的面包和汽车尾气里都含有稠环芳烃。
5·Recovery process of aromatic hydrocarbons from dehydrogenation vent gas of styrene units was studied.
研究了苯乙烯装置脱氢尾气中芳烃回收工艺。
6·Pollutants in cigarettes called PAHs (polycyclic aromatic hydrocarbons) can cause genetic damage in minutes.
香烟中的污染物质PAHs(多环芳香烃)会在几分钟内对基因造成损害。
7·The liquid paraffins obtained from urea-dewaxing process generally contain aromatic hydrocarbons in the range of 3~10%.
用尿素脱蜡方法生产出来的液体蜡，一般都含有3～10%的芳香烃。
8·IR laser chemistry (mainly plasma chemistry) of gaseous aromatic hydrocarbons was studied with a pulsed TEA-CO_2 laser.
本文研究了七种芳香族碳氢化合物的气相IR激光化学，主要是等离子体化学。实验说明。
9·Polycyclic aromatic hydrocarbons (PAHs), such as those found in ALH 84001, are not generally regarded as being diagnostic of life.
在84001上发现的一些物质，比如，多芳环烃一般不在被认为是生命的产物。
10·Objective To analyze the content of polycyclic aromatic hydrocarbons (PAHs) in mainstream smoke of 20 brands of Chinese cigarette.
目的检测20种主要国产品牌香烟主流烟雾中多环芳烃与焦油含量，并分析其是否有相关关系。