打开密封的地下水疏水管道人孔以试图定位进入系统的氚源。
Opening sealed subsurface drain line manways to attempt to localize the source of tritium into the system.
唔，污水管道是全封闭的系统，和暴雨下水管道完全分离。
Well wastewater sewage is a closed system. It's completely separate from the storm drains.
城市废水管网系统中臭气的最常见的发生源主要有下水道总管道和泵站。
The most common emergence of odour comes from the Urban sewage system, mainly in the total pipelines and equipment for treatment.
试验结果表明，采用透水铺盖面及渗透式雨水管道系统，对削减径流、补充地下水源有显著效果。
The results indicate that the perforated pavement and perforated rainwater drainage pipe system reduce run off and replenish underground water remarkably.
该文论述了邯郸城市排水系统运行中存在的污水管道渗漏，污染地下水资源； 汛期道路和下穿立交桥下积水影响交通；
The article discusses the operation safety problems that the sewage pipe is leaked and the underground water source is polluted in the operation of the urban drainage system in Handan City;
该文论述了邯郸城市排水系统运行中存在的污水管道渗漏，污染地下水资源； 汛期道路和下穿立交桥下积水影响交通；
The article discusses the operation safety problems that the sewage pipe is leaked and the underground water source is polluted in the operation of the urban drainage system in Handan City;
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