“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	automatic zenith tube automation Automation Control Engineering Handbook in Petrochemical Industry automation device automation experiment of internal combustion engine automation factory automation in metallurgical industry automation of continuous casting automation of distribution network protection automation of metallurgical industry automation of mine air compression automation of mine backfilling automation of mine drainage automation of mine electric automation of mine lifting automation of mine transportation automation of mine ventilation automation of navigation automation of pumping station automation of rural electric power networks automation system automation system at plant level automative woodworking machine automatization automaton

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