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
• 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
• deposit as a sediment

双语例句

• Observe microorganism in the water and in the sediment by a microscope.
  用显微镜观察水样本和基质样本中的微生物。
• Use the microscope to study microorganisms in the water and in the sediment.
  用显微镜观察水中和砂泥中的微生物的种类及密度。
• 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。
• 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 impact of environmental factors on cod, tn, tp release from sediment
  环境因子对底泥释放COD、TN和TP的影响研究
• Runoff and sediment yields are greatly affected by the type of land use.
  土地利用类型不同对产流产沙的影响程度不同。
• Erosion and sediment yield process of soil dumped by people have been analyzed by simulated rainfall experiments.
  通过人工模拟降雨实验，研究分析了强降雨条件下人为弃土的侵蚀产沙量及侵蚀过程。
• 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。
• 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。