sewage backup

См. также в других словарях:

• backup — /bak up /, n. 1. a person or thing that supports or reinforces another. 2. a musician or singer or group of musicians or singers accompanying a soloist: a singer with a three man backup that plays cello, bass, and guitar. 3. an overflow or… …   Universalium

• back up — ack up, v. i. 1. to move in a reverse direction; used of vehicles or animals. [PJC] 2. to accumulate due to a blockage of flow; as, a traffic backup due to an accident; a sewage backup. [PJC] …   The Collaborative International Dictionary of English

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• environmental works — ▪ civil engineering Introduction       infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …   Universalium

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