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供水,乃是人类社会的命脉与头等大事,自古以来,无论原始部落、乡镇,还是大中小城市都选址在有水供应的地域,更何况一国的都城。以首都北京为例,从三千多年前的燕、蓟,降至金元明清,以及近现代的北京城,都离不开供水的市政问题。尽管有不少河渠水系,如怀柔、密云等水库,到现今节约用水仍是当务之急,从大运河申报世界遗产,到南水北调,不断启示人们要珍
Water supply is the lifeline and the top priority of human society. Since ancient times, no matter whether the primitive tribes, townships or small cities are located in areas with water supply, let alone the capital of a country. Take the capital city of Beijing as an example. From Yan and Thistle dating back 3,000 years ago to the Jin and Ming and Qing Dynasties and the modern Beijing City, they are inseparable from the municipal issues of water supply. Although there are many river system, such as Huairou, Miyun and other reservoirs, water conservation is still the top priority today, from the Grand Canal to declare the world heritage, to the South Water Diversion, continue to inspire people to Jane