“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	commissioned with extraordinary powers commissioned work Commissioner-Councilor Commissioner for Community Relations Commissioner of Customs commissioner of customs, system of Commission for Agricultural Meteorology，WMO，CAgM Commission for Buddhist and Tibetan Affairs Commission for Hydrology of Chinese Hydraulic Engineering Society Commission for the Conservation of Antarctic Marine Living Resources Commission for the Conservation of Southern Bluefin Tuna Commission for the Preservation of Cultural Relics of the Old Capital commissioning and trial operation of complete unit commissioning of fluidized bed boiler commissioning of turbine air cooled system commissioning of water treatment system commissioning test commissioning test of boiler combustion commissioning test of hydro-generator unit Commission of Jinghu North Circuit Commission on Geographic Information Science of the International Geographical Union Commission on Marine Geography，Geographical Society of China Commission on Marine Geography，International Geographical Union Commission on Radiation Units and Measurements Commission plan

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