Short rod bacteria and spirillum were dominant in the denitrifying reactor.While cocci were the dominant bacteria in the nitrifying reactor. 于脱硝槽中是以短杆菌和弯曲杆菌为优势菌，而于硝化槽中则是以球菌为主要的优势菌。
Conclusions The prevailing pathogens in post-operative intracranial infection are Gram positive cocci, especially Staphylococcus epidermidis and Staphylococcus aureu. 结论神经外科患者颅内感染以革兰阳性球菌多见，尤其是表皮葡萄球菌和金黄色葡萄球菌。
