The spatial distribution of the concentrations of COD in water and sediment of surface layer shows a decreasing trend from the northwest and middle waters to the estuary of the bay.
海水与表层沉积物COD含量平面分布总的呈西北部水域和湾中部水域向湾口降低的趋势。
The spatial distribution of the concentrations of COD in water and sediment of surface layer shows a decreasing trend from the northwest and middle waters to the estuary of the bay.
海水与表层沉积物COD含量平面分布总的呈西北部水域和湾中部水域向湾口降低的趋势。
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