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1·For instance, cover with the tobacco tar that the coconut burn queen produces in the mouse back, may come into the skin tumour.

例如，在鼠背涂上可可燃烧后产生的烟油，可长出皮肤瘤。

2·Tobacco smoke is hazardous because it contains a number of unhealthy chemicals, including some 60 carcinogens (cancer-causing agents), tar, arsenic, carbon monoxide and nicotine.

吸烟之所以危害健康是因为烟草中含有多种损害健康的化学物质，包括60来种致癌物质、烟碱、砷、一氧化碳和尼古丁。

3·As we all know, tobacco contains many toxic substances such as nicotine and tar.

正如我们所知，烟草中含有许多有毒物质，如尼古丁和焦油。

4·Other smokers believe that cigarettes with low tar levels are safer. Tar is a substance produced when tobacco leaves are burned. It is known to cause cancer.

另外一些吸烟者认为低焦油的的烟草更安全，焦油是烟叶燃烧时产生的一种物质，它以易引发癌症而著称。

5·The most important carcinogens in tobacco is tar, which contains large amounts of carcinogenic effects of a strong 34 Benzo a Pyrene.

烟草中最主要的致癌物质是煤焦油，它含有大量致癌作用很强的34苯并a芘。

6·Effect of urea malic acid on the content of tar in smoke smog and the quality of raw tobacco leaf was studied by gas spectrum and common analysis methods.

用气相色谱及常规分析方法，研究了苹果酸脲对烟气中焦油含量及原烟品质的影响。

7·Material: Cigarettes, Cigarette, Tar oil, Smoke fluid, Environmental tobacco oil, Voice electrostatic plate, Mini Speaker.

材料：香烟，烟头，焦油，烟液，环保烟油，声控静电盘，迷你音箱。

8·Candy burns the amounts having increased tar the day after tomorrow together with tobacco , that candy burns queen's outcome is a important cancerogen in cigarette but.

糖与烟草一起燃烧后增加了焦油量，而糖燃烧后的产物是烟中的一个重要致癌物。

9·This kind of tobacco has a high tar content.

这种香烟焦油含量很高。

10·By testing the tar and smoking nicotine of tobacco leaves of flue-cured tobacco 40 grading standard, a set of complete analytical data have been got.

通过对烤烟（40级）各等级烟叶焦油含量和烟气烟碱的测定，取得了一套较为完整的分析数据。