But, he added, "there's got to be ways of inspecting the sewer system."
但是，他补充说，“必须找到办法检查下水道系统。”
The cause is unclear, but rising ocean levels and nitrogen dumped from the New York City sewer system are likely culprits.
造成这种现象的原因仍不明朗，但是海平面的日益增长和纽约下水道系统倾倒的氮化合物是可能的元凶。
This dissertation is to develop a late-model sewer system named vacuum sewer system.
本文旨在开发一套新型真空下水道系统。
Today in most large cities, water is used only once and then sent out into a sewer system.
今天在大多数的大城市里，水仅仅被用过一次，之后就被送到了下水道。
The researchers point out that, at the time, Washington, DC did not have a good sewer system.
研究人员指出，当时华盛顿特区没有良好的下水道系统。
Today, in most large cities, water is used only once and then discharged into a sewer system.
今天，在大多数大城市，水是仅使用一次，然后排入下水道系统。
The existing sewer system in Kenli County is a combined sewer system, and sewage is put into adjacent river directly.
垦利县城区目前的排水体制是合流制排水体制，污水就近排入河道。
Although most of the flood waters are gone, in most areas it's still not safe to drink tap water and the sewer system has not been fixed.
尽管大部分洪水已经退去，但多数地区的自来水仍不能安全饮用，而且排水系统也没有修复。
This paper introduces a basic idea of overall optimization of computer programming for sewer system, and a new computer program has been developed.
介绍了排水管网水力与高程计算全局优化程序设计的基本思想。
By right of its unique superiority, vacuum sewer system could be suitable to apply in environmentally sensitive area such as lake regions perfectly.
真空下水道系统凭借其自身优势在环境敏感地区(如湖区)具有较好的应用前景。
The wastewater from sinks, toilets, washing machines and so on pours into the Paris sewer system at an average temperature of 55 to 68 degrees Fahrenheit.
来自洗碗池、马桶、洗碗机等地方的废水以平均55至68华氏度（约合13-20摄氏度）的温度流入巴黎的污水管道系统。
The rehabilitation and extension project of combined sewer system in Xingsha Economic and Technological Development Zone, Changsha, is taken as a case study in this thesis.
本文以长沙市星沙开发区的合流制排水管网改扩建为工程实例进行了深入研究。
The process of pollutant overflow from the JXB sewer system and the event mean concentrations(EMCs) of overflows in Shanghai were studied, and the first flush effects were discussed.
为此，重点研究了上海中心城区某合流制排水区域JXB系统雨天污染物溢流的出流过程和污染物的事件平均浓度，并探讨了溢流污染物的初期效应。
In urban sewer design, the accomplishment of design intention is effected directly by the function of overflowing well, an important structure for combined sewer system with collector.
溢流井是城市截流式合流制排水系统的一个重要组成部分，它的成败直接影响着规划设计意图的实现。
In compiling a sewer system program in downtown area, the problems deal with the planning and design of sewer network in old township districts in south east seashore area were discussed.
结合编制某市市区污水管网系统专业规划，分析和研究了东南沿海地区类似老城区排水管网系统规划与设计需要注意的几个问题。
Based on the non-linear kinematic wave method, a technique using the four point, excentric, implicit, finite-difference numerical scheme to simulate the urban storm sewer system is introduced.
本文根据非线性运动波法理论，介绍了四点非中心隐式有限差分格式模拟城市雨水管网的技术。
Based on the non-linear kinematic wave method, a technique using the four point, excentric, implicit, finite-difference numerical scheme to simulate the urban storm sewer system is introduced.
本文根据非线性运动波法理论，介绍了四点非中心隐式有限差分格式模拟城市雨水管网的技术。
应用推荐