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介绍连云港深水外航道改扩建工程的实施情况，总结建设中的经验，并对大改线后的新外航道的回淤原因提出看法
This paper introduces the implementation of reconstruction and expansion of the deep water channel in Lianyungang, summarizes the experience in construction and gives some comments on the reasons for the siltation in the new outer channel