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。
Diatom data of 192 surface sediment samples from the marginal seas in the western Pacific together with modern summer and winter sea surface temperature and salinity data were analysed.
本文研究了西太平洋边缘海192个表层沉积物硅藻数据及现代冬夏季表层温度、盐度数据。
And sediment samples brought carefully to the surface were found to contain bacteria and archaea.
科学家还发现从深海小心翼翼带到地表的沉积物样本里含有细菌和古代细菌。
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