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sediment

英 [ˈsedɪmənt]

美 [ˈsedɪmənt]

n.  沉淀物; 沉积物

复数:sediments 

TOEFLIELTSGRETEM8化学

Collins.1 / BNC.5512 / COCA.7879

牛津词典

    noun

    • 沉淀物
      the solid material that settles at the bottom of a liquid
      1. 沉积物
        sand, stones, mud, etc. carried by water or wind and left, for example, on the bottom of a lake, river, etc.

        柯林斯词典

        • N-VAR 沉渣;沉淀物
          Sedimentis solid material that settles at the bottom of a liquid, especially earth and pieces of rock that have been carried along and then left somewhere by water, ice, or wind.
          1. Many organisms that die in the sea are soon buried by sediment.
            海洋里死亡的许多生物会很快被沉淀物掩埋。
          2. ...ocean sediments.
            海洋沉淀物

        英英释义

        noun

        • matter that has been deposited by some natural process
            Synonym:deposit

          verb

          • settle as sediment
            1. deposit as a sediment

              双语例句

              • This is changeable and rapid rate of sediment production.
                这是种多变而快速的沉积作用。
              • The experiment results are meaningful for quantifying runoff and sediment reduction and deepening soil erosion mechanical process also.
                研究结果对定量评价草被减流减沙作用和深化土壤侵蚀力学过程有一定的参考意义。
              • The distribution and composition of sterol compounds were determined in22 surface sediment samples collected from Bohai Bay and Jiaozhou Bay.
                测定了渤海湾和胶州湾22个表层沉积物样品中甾醇类化合物的含量,分析了其分布特征和来源。
              • Diesel fuel water and sediment
                柴油中的水和沉积物
              • They also protect watercourses and maintain water quality by reducing sediment and filtering pollutants.
                他们还可以保护河道,并通过减少沉积物和过滤污染物保持水质。
              • The biggest ecological impact could be less sediment swept downstream as silt accumulates in the reservoirs.
                大坝最大的生态影响可能是使流往下游的沉积物变少了,因为淤泥都聚集在水库里。
              • This paper summarized the progress of studies on the environmental pollution of heavy metals in lake sediment.
                综述了湖相沉积物重金属环境污染研究进展。
              • Wetland design can moderate peak flow rate and volume of runoff discharge and sediment deposition during precipitation events.
                湿地项目可以缓和雨洪峰值流率及降水过程中的径流排放量和沉淀量。
              • Scientists have found a large amount of lead in the sediment in the North sea.
                科学家们在北海的沉积物中发现了大量的铅。
              • The development of sequence can be controlled by three factors, namely tectonic subsidence, sediment supply and climate.
                层序发育的影响因素可分为构造沉降、沉积物供给和气候因素。