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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。
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asynchronous performance
asynchronous procedure call
asynchronous replication
asynchronous response mode
asynchronous response mode, ARM
asynchronous system
asynchronous time division multiplexing
asynchronous time division multiplexing, ATDM
asynchronous transfer mode
asynchronous transfer mode, ATM
asynchronous transfer mode-based passive optical network
asynchronous transfer mode,ATM
asynchronous transmission
A-system
A Systematic Analysis of the Music of Errentai
A Systematic Analysis on the Development of Opera in Jiangsu
A Systematic Study on the Costume of Peking Opera
A Systematic Treatise on Qiongju Opera
a system of memorial submission for the Grand Secretariat
a system of ridges and furrows
asyzygetic form
asyzygetic invariant
AS树脂
AT
At
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