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Underground Infrastructure Pipes

机译：地下基础设施管道

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Underground and out of sight, the world's vital utility infrastructure is composed of uncounted miles of pipe, including iron pipe that has been buried for centuries. The earliest pipes were for transporting water. Water systems were being constructed as early as 2500 BC with the most advanced being in ancient Rome, where a system of 11 aqueducts covering 360 miles could deliver 50 million gallons of water a day to large storage cisterns. Pipes made of lead brought water from the cisterns to public fountains and baths. The Romans also developed faucets. At about 2000 BC, a palace on the island of Crete was equipped with pipes supplying drinking water.
机译：地下的，看不见的，世界上至关重要的公用事业基础设施是由数不清的管道组成的，包括已埋葬了数百年的铁管。最早的管道是用来输水的。供水系统最早可建于公元前2500年，其中最先进的是古罗马，该系统由11条渡槽组成，覆盖360英里，每天可为大型储水池提供5000万加仑的水。用铅制成的管道将水从水池中带到公共喷泉和浴室。罗马人还开发了水龙头。大约在公元前2000年，克里特岛上的一座宫殿装有供水管道。

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