River channel sedimentation may aggravate flood control difficulties, and the sediment may centrally eject into the Yellow River.
河道淤积会加重防洪困难，其泥沙还可能集中排入黄河；
River channel sedimentation may aggravate flood control difficulties, and the sediment may centrally eject into the Yellow River.
河道淤积会加重防洪困难，其泥沙还可能集中排入黄河；
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