To study how a cigarette's contents impact human DNA, Hecht and his team used 12 volunteers to track PAHs, or polycyclic aromatic hydrocarbons, which are pollutants found in tobacco smoke.
为了研究香烟中的成分是怎样影响人类DNA的，赫克特和他的研究小组对12名志愿者进行了 PAH，即多环芳烃追踪。
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。
Stegeman has been chronicling resistance to toxic PCBs and polycyclic aromatic hydrocarbons in another coastal species, a killifish.
斯蒂门记录有另一种对有毒的多氯联苯和多环芳烃有抵抗作用海岸物种，那是一种鳉鱼。
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。
There's also concern that fat dripping from meat onto hot coals, stones or burners creates additional carcinogens called polycyclic aromatic hydrocarbons.
还有一个要担忧的问题：肉类的油脂滴落在热烫的煤炭、石头或者炉子上会产生另一种致癌物质——多环芳烃。
The Commission adopted the first guidelines for reducing polycyclic aromatic hydrocarbons (PAH) intake through final food preparation.
委员会通过了关于在食品最后制备过程中减少多环芳烃摄入的第一份准则。
The group is requesting that the FDA enact a rule that sets a limit on the amount of polycyclic aromatic hydrocarbons deemed safe for pregnant women and young children.
该机构正在要求FDA就多环芳烃对怀孕妇女和儿童无害的最低安全含量做出规定。
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。
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。
Based on the infrared spectra, it was suggested that the scale insect's waxes be composed most by long-chain hydrocarbons, fatty alcohols, fatty acids and some compounds with aromatic rings.
根据红外光谱特征分析，推测该虫蜡泌物的化学成分可能主要是由长链烃、长链脂肪酸、脂肪醇和某些带芳香环的化合物组成。
Aniline point is used to characterize pure hydrocarbons and to indicate the aromatic content of hydrocarbon mixtures.
苯胺点用来表现纯净的碳氢化合物的特性并用于显示烃类混合物里的芳烃含量。
Benzene is the simplest of aromatic hydrocarbons, organic chemicals for the basic raw materials, has a very wide range of industrial USES.
苯是最简单的芳烃，为有机化工的基本原料，具有十分广泛的工业用途。
Resistance to most oils and solvents, especially acids, aliphatic hydrocarbons, aromatic hydrocarbons and animal and vegetable oils.
对于大部份油品及溶剂都具有抵抗能力，尤其是酸类、脂族烃、芳香烃及动植物油。
In prospect of future, the packing materials will be a power tool in detection of pesticide residues in soil and plants, poly-aromatic hydrocarbons in environment as well as pharmaceutics industry.
在环境监测方面如测定土壤、植物中农药残留量、多环芳烃等致癌物以及在生化药品制备及检测方面，尤其是在强碱性化合物测定上具有极大的优势。
The main components of oil are saturated hydrocarbons, aromatic compounds, asphaltenes, resins, and so on. It is difficult to degrade these substances which are bad for aquatic life.
由于石油的主要成分包括饱和烃、芳香烃类化合物、沥青质、树脂类等，这些物质难以降解，并且对水生生物有毒杀作用。
A. Enzymes transform complex, recalcitrant aromatic and aliphatic hydrocarbons that are not easily biodegradable to simple fatty acids, thereby accelerating biological cleanup.
酶能转化复杂的，难降解的芳烃和直链烃类化合物，并不是轻易地将它们生物降解为为简单的脂肪酸，而是加速生物清除的过程。
The densities of aromatic hydrocarbons were collected from the original literature published from 1870 to early 1997 and critically evaluated.
芳香的烃的密度被从从1870到1997出版的早些时候并且严重地评价的原先的文学收集。
To investigate concentrations of polycyclic aromatic hydrocarbons (PAH) in Ambient particulate matter and their mutagenic activities in an Industrial Area of Northeastern China.
调查东北某工业城市大气颗粒物质和多环芳香烃类化合物的浓度以及它们的致突变活性。
This paper simulated polycyclic aromatic hydrocarbons formation in C2H6/O2/N2/AR laminar opposed flow diffusion flame using detailed chemical kinetic mechanism.
本文使用详细的化学反应机理模拟了C2H6／O2／N2／AR层流对冲扩散火焰中多环芳烃的生成动力学过程。
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。
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。
The results showed that the removal efficiencies of phenols and aromatic compounds are high, whereas those of aliphatic hydrocarbons are low by the biochemical aeration process in the refinery.
结果表明，炼油厂生化曝气池对酚类及芳烃类化合物的去除效果较好，而长链脂肪烃的去除率相对较低；
The results showed that the dust organic extraction and its polycyclic aromatic hydrocarbons, organic acids, polar compounds increased micronucleus and SCE frequency significantly with a dose effect.
结果表明，粉尘有机提取物及其有机酸、多环芳烃、极性化合物可使微核率和SCE率显著增高，并有一定的剂量-反应关系。
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。
Not only the formation, characters and harmfulness were introduced, but also the removal of polyclinic aromatic hydrocarbons in cigarette smoke by plant additives was discussed in detail.
文章简单地介绍了烟气中稠环芳烃的形成、性质及对人体的危害，并详细综述了植物添加剂降低卷烟烟气稠环芳烃的研究进展。
I but the carrier of heavy metals and toxic substances such as polycyclic aromatic hydrocarbons, can lead to diseases such as pneumonia, sore throat, asthma, bronchitis, and know that my bad now?
我可是重金属、多环芳烃等有毒物质的载体，会引起肺炎、咽喉炎、哮喘、气管炎等疾病，现在知道我的厉害了吧？
The system was successfully used in the analyses of C6-C8 aromatic hydrocarbons and low-boiling point hydrocarbons in various oils.
经油品中C_6～C_8芳烃及低级烃的分析，证明此流程适用于色谱仪器的智能化和专用化。
The system was successfully used in the analyses of C6-C8 aromatic hydrocarbons and low-boiling point hydrocarbons in various oils.
经油品中C_6～C_8芳烃及低级烃的分析，证明此流程适用于色谱仪器的智能化和专用化。
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