查询词典 benzopyrene

Quantitative expression and effect of combined pollution of heavy metals and polycyclic aromatic hydrocarbons, including phenanthrene, fluoranthene and benzopyrene, on soil enzyme were investigated during 7 weeks of incubation.

以土壤脲酶和脱氢酶为探针物质，室内培养条件下较为系统地研究了重金属和多环芳烃复合污染对土壤酶活性的影响及其定量表征。

In the oil-generation window fluoranthene/pyrene reduced with the rising of maturity, and so did benzofluoranthene /benzopyrene in the mature to highly mature stages.

在成熟—高成熟阶段，苯并萤蒽/苯并芘比值也基本随熟度增加而降低。

Based on Fluoranthene/Pyrene and Pyrene/Benzopyrene ratios, the main source of PAHs was identified from petroleum industry at Jinzhou Bay, petrolic combustion turned into the source in Qinhuangdao and part of Liaodong Bay, and coal-burning was primary in the other areas.

荧蒽/芘和芘/苯并芘两个比值参数显示锦州湾近岸沉积物的PAHs主要源于石油工业，秦皇岛近岸和莱州湾部分站点主要来自燃油产物，而其它海区的大部分站点则属于燃煤型来源。

Automobile exhaust also found 32 species of polycyclic aromatic hydrocarbons, including 3,4 - benzopyrene and other carcinogenic substances.

汽车尾气中还发现有32种多环芳烃，包括3，4-苯并芘等致癌物质。

Since there are aflatoxin and benzopyrene, both toxins are carcinogens.

因为其中有黄曲霉素和苯并芘，这两种毒素都是致癌物质。

Objective To study the effects of benzopyrene on capability of learning and memory and the content of amino acid neurotransmitters in hippocampus of rats.

摘 要：目的研究苯并芘对大鼠学习记忆和海马氨基酸类神经递质含量的影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。