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sluice and culvert in ancient China
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sluice and culvert in ancient China
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工学
中国水利科学技术史
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sluice and culvert in ancient China
中国古代闸涵
古代水闸。又称水门、斗门、陡门、牐或碶,是建在河床或河湖岸边用闸门控制水位、取水或泄水的建筑物。古代涵洞,又称水函、水窦,是埋在填土(主要是堤防或堤岸)下面的过水建筑物。
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