Smoke is a mixture of gases, vaporized chemicals, minute particles of ash, and other solids. There is also nicotine, which is a powerful poison, and black tar.
抽烟产生的烟雾是一种混合的气体，包括气化的化学物质，极小的灰末微粒和其它固体，还有毒性很强的尼古丁和黑焦油。
The direct reason that causes the cable fire disaster-the second disaster is that the smoke and poison gas produced by the cable for mine purposes when burning.
煤矿用电缆燃烧时所释放出的烟雾和毒性气体是造成电缆火灾事故“二次灾害”的直接原因。
One of the nicotine in cigarette smoke can poison a rat, 20 cigarettes, the nicotine can kill a cow.
一支香烟里的尼古丁，可毒死一支老鼠，20支香烟里尼古丁够毒死一头牛。
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