The lead concentration of surface sediment samples collected from the Dalian Bay and the adjacent sea area have been examined.
大连港及其附近海域底质表层样品铅含量分析表明，底质中铅含量较高，污染严重。
These sea gulls used to find food in the Bohai Bay sea area off Dalian city which was covered by heavy ice because of the cold weather.
这些海鸥过去是在大连市渤海湾海域觅食。因为最近低温天气，海面覆盖厚厚的冰层，所以它们才转移觅食地。
The spectrum feature of water in dalian Bay is also analyzed.
第六章介绍数据采集与处理，分析了大连湾水体光谱特征。
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