And smokeless products contain the same chemical compounds, including nicotine, that have been linked to heart disease in cigarettes.
无烟烟草制品和普通的烟一样同，有包括尼古丁这类的和心脏疾病有关的化学成分。
The changes of nitrogenous compounds (protein, nicotine and chlorophyll) in burley tobacco leaves during air-curing under 3 different barn humidities controlled artificially were studied.
通过人工调控晾房湿度，对白肋烟晾制期间高、中、低3种湿度条件下烟叶含氮化合物（蛋白质、烟碱和叶绿素）的变化进行了研究。
The changes of nitrogenous compounds (protein, nicotine and chlorophyll) in burley tobacco leaves during air-curing under 3 different barn humidities controlled artificially were studied.
通过人工调控晾房湿度，对白肋烟晾制期间高、中、低3种湿度条件下烟叶含氮化合物（蛋白质、烟碱和叶绿素）的变化进行了研究。
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