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古代交通运输,以水运最为廉价方便。我国历史悠久,幅员广大,水运曾为古代国家的统一和繁荣作出过突出的贡献。我国的巨川大河多为西而东流,为沟通南北,连接这些江河的人工运河,在两千多年前就已经出现。隋代,以洛阳为中心的南北大运河和元代以后的京杭大运河就是骨干运河不断发展和完善的结果。这些运河的某些区段,
Ancient transportation, the most inexpensive and convenient water transport. Our country has a long history and vast territory, and water transport once made outstanding contributions to the unification and prosperity of the ancient countries. The Juchuan River in our country is mostly westward and eastward, and artificial canals connecting north and south and connecting these rivers have appeared more than two thousand years ago. Sui Dynasty, Luoyang as the center of the Grand Canal and the Grand Canal after the Yuan Dynasty is the continuous development and improvement of the backbone of the canal. Certain sections of these canals,