“古代北京城水利”的概念、定义、翻译、参考文献-科学参考

单词	古代北京城水利
释义	古代北京城水利 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	noise of electron tube noise of film & television scene noise of internal combustion engine noise of nuclear power plant Noise Pollution Control noise pollution map noise pollution monitoring noise pollution of fishery environment noise pollution prevention and control law noise power noise power spectrum noise prediction noise prevention arrangement in building noise-proof helmet noise-reducing pavement noise reduction noise reduction by plasma noise reduction coefficient noise reduction via nonlinear dynamics noise sensor Noises Off noise source noise source control noise spectrum noise sphere

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