A method has been developed to accurately determine total particulate-phase free radicals in mainstream cigarette smoke.

研究了一种准确测定主流卷烟烟气中固相自由基总量的新方法。

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On the basis of former studies, this paper studies on cytotoxicity and mutagenicity of different mainstream cigarette smoke, the main experimental results are as follows: 1.

本文在前人的基础上研究了不同卷烟主流烟气的细胞毒性及致突变性，现总结实验结果如下：1。

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Secondhand smoke comes from both the smoke that smokers exhale (called mainstream smoke) and the smoke floating from the end of the cigarette, cigar, or pipe (called sidestream smoke).

二手烟不仅来自吸烟者呼出的烟气（我们称之为主流烟气），而且来自从烟尾、雪茄或者烟管中飘散出的烟气（我们称之为测流烟）。

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