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古代引泉济运工程
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古代引泉济运工程
Encyclopedia
理学
古代引泉济运工程
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projects of diverting spring water to supply canal in ancient China
古代引泉济运工程
大运河沿线为解决水源补给困难以确保航运畅通而采取的引用泉水的工程技术,主要分布于通惠河、会通河和卫运河上游。
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element of a set
element of a space
element of a spread
element of best approximation
element of city planning
element of contact
element of eclipse
element of finite order
element of geometry
element of infinite height
element of infinite order
element of information exchange
element of integration
element of length
element of orbit
element of regular wave
element of reserve
element of the first importance
element of volume
elemento organic chemistry
elemento-organic chemistry
elemento organic compound
elemento-organic compound
elemento-organic polymer
element organic polymer materials
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