V2EX sedimentation

Sedimentation

释义 Definition

沉积(作用);沉淀(过程):指固体颗粒在液体或空气中因重力等作用逐渐下沉并堆积的过程;也可指这些沉积物的形成与累积。(在地质学、环境科学与水处理等语境中很常见;在化学中也常与“沉淀”相关,但更偏过程。)

发音 Pronunciation

/sedmenten/

例句 Examples

Sedimentation happens when sand and mud settle to the bottom of a river.
沉积作用发生在沙子和泥巴沉到河底时。

Over time, sedimentation in the reservoir reduced its storage capacity and affected local water supply planning.
随着时间推移,水库中的沉积作用降低了库容,并影响了当地供水规划。

词源 Etymology

sedimentation 来自 sediment(沉积物)+ 名词后缀 -ation(表示“过程、行为”)。而 sediment 源自拉丁语 sedimentum,与 sedere(“坐下、沉下去”)同源,形象地表达“颗粒沉下去并堆积”的含义。

相关词 Related Words

文学作品 Literary Works

  • Charles Darwin, On the Origin of Species(《物种起源》):讨论地质时间尺度与地层记录时会涉及沉积与地层形成等概念。
  • Charles Lyell, Principles of Geology(《地质学原理》):在阐述地表缓慢变化与地层形成机制时,常使用与沉积作用相关的术语与表述。
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