The distinguished results of higher operation rate, small content of tar fog in gas and lower operation cost have got.
对于电捕焦油器系统进行了全面的改进和完善，取得了开工率高、煤气中焦油雾含量低、运行费用少的显著效果。
The results demonstrated that the content of N-nitrosamines in the side-stream of cigarette was not obviously related to the content of tar or nicotine.
测定了各种烤烟型和混合型卷烟侧流烟气中的亚硝胺含量，并将之与卷烟焦油和烟气烟碱量相关联。
Effect of urea malic acid on the content of tar in smoke smog and the quality of raw tobacco leaf was studied by gas spectrum and common analysis methods.
用气相色谱及常规分析方法，研究了苹果酸脲对烟气中焦油含量及原烟品质的影响。
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