“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	Public Servants Entering the Live Room - Office HotLine on Wednesday public service public service advertising public service area public service data repository public service functions public service inequalities between urban and rural area public service of press and publication public service quality of museum public service standards of museum public service system of museum digital culture and creativity public service TV program public shaming of offender Public Shareholder public signal public space public space lighting public spending for operation public sphere public spirit public sports facilities public sports service system public square dancing public supervision over urban and rural planning public switched telephone network

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