原工艺过程中产生的焦油酚水出现乳化现象。
The emulsification of tar-phenolic water was appeared in the original process.
根据聚丙烯腈基碳纤维生产工艺路线，从原丝、 预氧化、碳化工艺及结构上分析了聚丙烯腈基碳纤维焦油形成的原因。
The reasons for tar formation from polyacrylonitrile-based carbon fiber were analyzed from the structure and the production line, from as-spun fiber, pre-oxidation to carbonization.
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。
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.
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