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词汇 Combined sewer
分类 英语词汇 英语翻译词典
释义

Combined sewer

原声例句
当月 VOA Special English

Paris is an ancient city. And like many old cities, it has what is known as a combined sewer system.

巴黎是一座古老的城市，而且像许多老城市一样，它有所谓的合流下水道系统。

英语百科

Combined sewer

Combined Sewer System. During dry weather (and small storms), all flows are handled by the publicly owned treatment works (POTW). During large storms, the relief structure allows some of the combined stormwater and sewage to be discharged untreated to an adjacent water body.
Photo of the interior of a combined sewer in Brighton, England.
Most of the US combined sewer systems are in the Northeast and Great Lakes regions, and the Pacific Northwest.
A combined sewer-pipe being laid by the city's sewerage company in Ghent, Belgium.

A combined sewer is a sewage collection system of pipes and tunnels designed to also collect surface runoff. Combined sewers can cause serious water pollution problems during combined sewer overflow (CSO) events when wet weather flows exceed the sewage treatment plant capacity. This type of sewer design is no longer used in building new communities (because current design separates sanitary sewers from runoff), but many older cities continue to operate combined sewers.
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