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单词 stratification
释义
stratification

Biology
  • 1. The arrangement of the components of an entity in layers (strata). Stratification is a feature of sedimentary rocks and soils. It is also seen in stratified epithelium, and thermal stratification can occur in some lakes (see thermocline).

    2. The practice of placing certain seeds between layers of peat or sand and then exposing them to low temperatures for a period, which is required before they will germinate. See vernalization.


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