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6.2 Key projects
中國(guó)大運(yùn)河技術(shù)史

        The Jiangnan Canal is 340 km long,connecting the Yangtze River,theTaihu Lake and the Qiantang River.During the Spring and AutumnPeriod,natural river systems were connected locally.In the QinDynasty,a continuous channel was formed,connecting the YangtzeRiv    (共 679 字)     [閱讀本文] >>

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