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.
化学不变性差的非稠环芳烃、混环芳烃化合物含量减小。
Meanwhile, there is a low content of compound in unthickened polynuclear aromatic hydrocarbon (PAH) and pah mix which both are poor in chemical stability.
催化裂化柴油的稠环芳烃可通过控制氢转移反应速率实现品质最佳化。
The quality of FCC diesel fraction can be optimized by controlling the reaction rate of hydrogen transference of aromatics with condensed rings.
对应用于生物工程的萘、芴、芘、蒽、苊等稠环芳烃衍生物作了概括介绍。
The derivates of naphthalene, fluorene, pyrene, anthracene, acenaphthene and their application in biotechnology were reviewed.
加入少量的萘、蒽等稠环芳烃于庚烷溶剂中，则大大提高高聚物的分子量。
Addition of small amount of polynuclear hydrocarbons, such as naphthalene or anthracene to the heptane polymerization solution raised the molecular weight of the polymer to a considerable extent.
以稠环芳烃为探针，考察了烷基膦酸改性锆镁复合氧化物材料的反相色谱性能。
The reversed phase chromatographic performance of the new packing material was investigated with some polycyclic aromatic hydrocarbons (PAHs) as solutes.
该催化剂在较低的反应温度下，具有高的饱和稠环芳烃的能力和较小的裂解性能。
The results indicated that the RJW-1 catalyst has a high activity for the saturation of polyaromatics at low temperature and a low cracking capability and good stability.
本文研究了两类新型稠环芳烃接枝聚硅氧烷固定相的合成，并系统评价了它们的色谱性能、应用于实际样品的分离。
In this paper, two new grafted polysiloxane GC stationary phase were synthesized. Evaluation of their chromatographic properties and separation applied to real samples were tested.
对金陵石化公司炼油厂加氢裂化装置高压空冷器的结垢原因进行了分析，垢物剖析表明该系统结垢物主要由稠环芳烃组成。
The causes of fouling of high pressure air cooler of hydrocracker in Jinlin Petrochemical Company, s refinery were analyzed. The analysis showed that the fouling was formed from polycyclic aromatics.
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。
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.
根据脂肪烃、多卤联苯、卤代苯和稠环芳烃等80种非极性有机化合物在鱼体中生物富集因子（BCF）的实测数据，建立了有机物在鱼体中生物富集因子的片段常数法估算模型。
Relationship between bioconcentration factor and fragment constants was investigated. A prediction model was developed on the basis of the observed BCF values of 80 non-polar organic compounds.
根据脂肪烃、多卤联苯、卤代苯和稠环芳烃等80种非极性有机化合物在鱼体中生物富集因子（BCF）的实测数据，建立了有机物在鱼体中生物富集因子的片段常数法估算模型。
Relationship between bioconcentration factor and fragment constants was investigated. A prediction model was developed on the basis of the observed BCF values of 80 non-polar organic compounds.
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