绍兴污水处理厂采用鼓风曝气，在运行过程中存在曝气管盲盖脱落现象，排水系统也存在缺陷。
Air blower aeration was adopted in Shaoxing Wastewater Treatment Plant, where exist some disadvantages, such as the falling-off of blind lid from aerated pipe and malfunction of drainage system.
也有人主张另一种可供选择的治疗方法就是只移除盲袋的龈盖去除术。
An alternative treatment involving removal of the operculum, called operculectomy, has been advocated.
关闭所有盲法兰盖、并检查各个孔和人孔。
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