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4.1 Natural history of Canals and their regions
中國大運(yùn)河技術(shù)史

4.1 Natural history of Canals and their regions圖片（共1張） :
4.1 Natural history of Canals and their regions

        In 1128,the Yellow River burst its banks at Kaifeng of HenanProvince and changed its course,which started a history of 700 years offlowing south.After the Yellow River changed its course,its newchannel passed through Bianshui and Sishui,joined the Huaihe     （共 11503 字）     [閱讀本文] >>

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