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。
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.
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。
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.
目的研究多杂环化合物的合成方法和抗菌活性。
Aim To study on synthesis and antibacterial activity evaluation of poly heterocycles.
目的研究多杂环化合物的合成方法和抗菌活性。
Aim To study on synthesis and antibacterial activity evaluation of poly heterocycles.
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