我们在有关污水工程设计文件或者规划文件中经常看到管道普及率这个名词,仔细考虑似乎在应用中不甚准确。在此谈一些笔者的个人意见,与同行商榷。污水管道的普及率有两种说法:一是指某一时期实施污水管道系统的服务面积与此时期污水管道系统应达到的总服务面积的百分比;二是指某一时期实施污水管道的长度与此时期污水管道应达到的总实施长度的百分比。这一概念的两种定义反映的均是污水管道某一时期 We often see the term pipeline penetration in sewage engineering design documents or planning documents. Careful consideration seems to be less accurate in application. Here to talk about some of my personal opinion, and colleagues to discuss. Sewage pipe penetration rate, there are two versions: First, refers to the implementation of the sewage pipe system during a period of service area and the sewage pipe system at this time the percentage of total service area should be reached; second refers to the implementation of a certain period of sewage pipe length and The percentage of total length of pipelines that should be reached during this period. Both definitions of this concept reflect sewer pipelines over a period of time