polycyclic aromatic hydrocarbons短语¹⁴⁴⁹⁷²⁺² 基本例句 多环芳烃 The producing process of polycyclic aromatic hydrocarbons and its existence in smoke-dried meat products, as well as its solution were reviewed in this article. 综述了烟熏肉制品中的多环芳烃的产生过程，并对烟熏肉制品中多环芳烃存在的问题和发展趋势进行了展望。 chemyq