首先，运用机理建模的方法建立了余热锅炉各个典型部件的动态数学模型，如烟气侧模型、汽水侧模型等。
Firstly, the dynamic mathematical models of the typical components of HRSG are built up according to the fundamental physical laws, such as the gas side model and the steam-water side model.
卷烟燃烧时释放出大量侧流烟气，其中有很多危害人们身体健康的物质，如烟碱、醛类物质等。
In the sidestream smoke of cigarette, there are many substances which are harmful to people's health, such as nicotine, aldehyde.
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