This paper narrated harmful composition in the gaseous state and granulous state of the steam and smoke,and the harm of smoking,appeal control smoking.
本文述说了烟气里气相和
相中
有害
分和吸烟害
,呼吁要控制吸烟。
而
,状This paper narrated harmful composition in the gaseous state and granulous state of the steam and smoke,and the harm of smoking,appeal control smoking.
本文述说了烟气里气相和相中有害分和吸烟害,呼吁要控制吸烟。
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