“water conservancy of ancient Beijing city”的概念、定义、翻译、参考文献-科学参考

单词	water conservancy of ancient Beijing city
释义	water conservancy of ancient Beijing city Encyclopedia 工学〔中国古代城市水利〕释 water conservancy of ancient Beijing city古代北京城水利北京位于永定河与潮白河洪积冲积扇脊部，这两条河都距城区较远流过，引用存在许多困难。北京降水量年内分布很不均匀，总径流量偏少，自古就是缺水地区。开发利用永定河与潮白河水资源并防止其洪水灾害，是古代北京城水利的重点。
随便看	the three-opening dramatic stage of the Longtian Temple in Jiexiu the three Parnassus plays the three-ring conception of giftedness the Three Saints of the Avatamsaka Sutra the three series of《Golden Mirror of Waterways》 The three sisters The Three-Step Development Strategy The Three Sui Quash the Demons' Revolt the three thousand quiddities inherently entailed in each moment of experience The Three Tragic Hills the three triangle-arrayed dramatic stages of the Shrine to the Goddess of the Earth in Wanrong County the three types of left-behind personnel the threshing farm implements the thucydides trap The thunder and Rain The Thunderstorm the tiananmen square the Tiandu Literary Society the Tianma event the Tiaoxi Poets’Club The Tientsin Student the time effect of criminal law The Timely Pearl: A 12th Century Tangut-Chinese Glossary The Time Machine: An Invention the time of circulation

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