提出了以饱和烃、一环芳烃和二环芳烃组成的理想催化裂化组分的概念。
A concept of FCC ideal feed components consisting of saturates, mono and dicyclic aromatic is then suggested.
石化的两类主要产品是烯烃和芳烃。
The two main classes of petrochemicals are olefins and aromatics.
在城市地区机动车辆是多环芳烃的主要来源。
芳烃是环状碳氢化合物，如苯，甲苯和二甲苯。
The aromatics are ringed hydrocarbons, such as benzene, toluene and xylene. Benzene is used to make polystyrenes e.g.
综述了多环芳烃降解菌的应用研究情况；
The application researches on PAHs-degrading microorganisms are summarized.
没有证据证明 多环芳烃对她女儿的智力产生了影响。
There is no evidence that the PAHs affected her daughter’s IQ.
多环芳烃来自于汽车尾气以及住宅供暖和发电的排放。
PAHs are in car or bus exhaust and emissions from residential heating and power generation.
不建议与石油溶剂、煤油或芳烃同时使用。
Not recommended for use with petroleum solvents, kerosene or aromatics.
在地球上，烤糊的面包和汽车尾气里都含有稠环芳烃。
On Earth, polycyclic aromatic hydrocarbons are found on burnt toast and in automobile exhaust.
佩雷拉说好消息是纽约市的多环芳烃含量正在减少。
The good news, Perera said, is that levels of PAHs are declining in New York City.
多环芳烃同样对胎儿的DNA产生直接影响。
它们的高溶解性与芳烃类似，但具有更高极性。
Their high solvency resembles that of aromatics but offer higher polarity.
总共有140名儿童被分为多环芳烃的高接触者。
A total of 140 children were classified as having high PAH exposure.
她不知道在怀孕期他是处在多环芳烃含量高还是低的环境中的。
She does not know whether her exposure to PAHs during the pregnancy was classified as high or low.
这是第二次，但间接的方式多环芳烃可以导致癌症。
This is a second, but indirect, way in which PAHs can cause cancer.
在克拉科夫，女人们所处的环境多环芳烃含量比纽约的高8倍。
In Krakow, the women on average were exposed to eight times higher concentrations of PAHs than the women in New York City.
橡胶芳烃油生产的充油橡胶具有良好的工艺性能和机械性能。
The oil-extended rubber obtained from rubber aromatic oil is of good processibility with satisfactory mechanical properties.
本文用气相色谱测定了多种烷烃、芳烃、醇类和酯类的蒸发热。
The heat of evaporation for various kinds of alkanes, alcohols, esters and aromatics were determined by gas chromatography.
芳烃抽提装置改造后抽余油产量提高，但抽余油系统没有配套改造。
The extracted oil output was increased after revamping aromatics extraction unit, but the raffinate oil system was not modified along with.
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。
Benzene is the simplest of aromatic hydrocarbons, organic chemicals for the basic raw materials, has a very wide range of industrial USES.
为了满足更高的环保要求，我国应生产低硫低芳烃含量的环保型溶剂油；
Low sulfur and low aromatic solvent oils should be produced to meet the more strict environment protection requirements.
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。
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.
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 Commission adopted the first guidelines for reducing polycyclic aromatic hydrocarbons (PAH) intake through final food preparation.
赫克特特别注意追踪特定的一种多环芳烃——菲，因为菲存在于香烟烟雾中。
One specific type that Hecht was particularly interested in tracking was phenanthrene, which is in cigarette smoke.
用此方法可以计算汽油的辛烷值、柴油的十六烷值、馏分油中芳烃和硫含量。
Through it, octane value of gasoline, cetane value of diesel oil, aromatics and sulphur contents in fraction oil can be calculated.
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。
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。
Stegeman has been chronicling resistance to toxic PCBs and polycyclic aromatic hydrocarbons in another coastal species, a killifish.
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