基本解释int.呸；哼(表示轻蔑、不快的感叹词)PAH.abbr.多环芳烃(=polycyclic aromatic hydrocarbon)同根派生 pah相关词英汉例句用作缩略词 (abbr.)The results showed that the cultivated bacteria had a significant degradation effects to PAH.结果表明,降解菌对堆肥中的多环芳烃有明显的降解作用。pah更多例句