英语释义

1. having more than one cyclic component especially having two or more rings in the molecule

2. having more than one cyclic component especially having two or more usually fused rings in a molecule

片语

polycyclic arene多环芳烃

polycyclic orogenesis多旋回造山运动

polycyclic aromatics多环芳烃

polycyclic landform多旋回地形

polycyclic disease多循环病害

polycyclic carcinogen多环致癌物质

polycyclic aromatic hydrocarbon多环芳烃；稠环芳烃

polycyclic system多环体系

Polycyclic groups多循环群

polycyclic musk多环麝香

英汉例句

• the paper summarizes the recent research on the source, migration and transformation of polycyclic aromatic hydrocarbon (pah)under the different environments.

  本文综述环境中多环芳烃的来源的迁移转化的研究近况。

• and there are 8 kinds of main components in liquid fuel, which belong to higher olefine hydrocarbon, acetylene series, heterocyclic compound and polycyclic organic matter.

  从收集到的液体燃料中检测出8种主要物质，分别为高级烯烃、炔烃、杂环化合物和多环有机物。

• 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。

• 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。

• this paper reports mathematical methods of extended bay region theory for carcinogenic mechanism of polycyclic aromatic hydrocarbons(pahs).

  本文报导多环芳烃广义湾区致癌理论的数学方法。

• 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。

• 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。

• 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。

• the organics, called polycyclic aromatic hydrocarbons, are dusty, carbon-containing molecules that help in the formation of stars.

  有机物，被叫做多环的芳烃，是一些尘埃，含碳分子帮助恒星的形成。

• as the chemicals in the spilled oil were ingested by animals higher on the food chain, the amount of chemicals, called polycyclic aromatic hydrocarbons, accumulated in marine mammals.

  溢油的化学物质经食物链在动物体内富集，海洋哺乳动物位于食物链较高端，积累了大量的化合物如多环芳烃等。

• the results of analysis shown that the pollution of polycyclic aromatic hydrocarbons and phthalate acid esters were widespread in rivers in chongqing, and attention should paid to them.

  分析结果表明，重庆段水域多环芳烃类和邻苯二甲酸酯类检出率比较高，需要予以密切关注。

• component of polycyclic aromatic hydrocarbons in petroleum can lead to cancer and aberration harming the health of mankind.

  它其中的多环芳烃成分具有致癌，致畸变等作用，危及人类健康；

• 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层流对沖扩散火焰中多环芳烃的生成动力学过程。

• 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率显着增高，并有一定的剂量-反应关系。

• 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。

• cannabis smoke actually contains higher concentrations of carcinogenic polycyclic aromatic hydrocarbons (pahs) than tobacco smoke.

  抽叶子其实比抽烟含有更多的致癌的多环芳香烃化合物。

• conclusion polycyclic aromatic hydrocarbons(pahs) has a strong genetic toxic effect and can cause p21 level increase in earlier stage among occupational workers.

  结论多环芳烃类混合物具有较强的遗传毒性，可使职业工人在早期接触阶段出现p2 1的高表达。

• on the basis of the helix theory proposed by the authors, the relationship between stereostructure and rotatory direction is analyzed for the fused polycyclic compounds.

  通过笔者提出的螺旋理论，分析了多环稠合化合物的立体结构和旋光方向间的关系。

• background & aim: to investigate concentrations and mutagenic activities of ambient particulate matter (pm) and polycyclic aromatic hydrocarbons(pahs) in an industrial area of northeastern china.

  背景与目的：调查东北某工业城市大气颗粒物质和多环芳烃类化合物的浓度以及它们的致突变活性。

• meanwhile, spitzer」s infrared view exposes carbon-rich molecules called polycyclic aromatic hydrocarbons in the cloud.

  同时，斯比策的红外成像也标注出云团中被统称为稠环芳烃的富碳分子的痕迹。

• 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。

• the researchers looked at the level of chemicals linked with cancer, polycyclic aromatic hydrocarbons (pah), in 12 patients after smoking.

  研究人员分析了12位病患抽烟后体内致癌化学物质多环芳烃(pah)的含量。

• 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，即多环芳烃追蹤。

• the results showed that there were 36 to 131 sorts of benzene and its derivatives, heterocyclic compounds, and polycyclic compounds being detected. most of them have harmful effect on human health.

  分析结果表明，这些香烟中，含有苯类衍生物、杂环类化合物及多环化合物等，从36种到131种不等，绝大多数有害人体健康。