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北江大堤是广东第一大堤，肩负防洪重任。本文阐述了大堤的建设历史及其重大的防洪作用，认为确保其防洪效益必须注意堤围的维护。
Beijiang Levee is the largest embankment in Guangdong, shouldering the flood control task. This paper expounds the construction history of dike and its significant flood control effect. It is considered that it is necessary to pay attention to the maintenance of dike in order to ensure its flood control benefit.