int.呸；哼(表示轻蔑、不快的感叹词)
PAH.
abbr.多环芳烃(=polycyclic aromatic hydrocarbon)
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。
