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单词 day-degree
释义

day-degree

noun
A number equal to degrees of temperature multiplied by the number of days when that temperature was maintained.
  • The term was introduced in the context of Meteorology typically to express the excess above some standard or average temperature; in Agriculture and Biology it can also refer to the temperature as measured..

Origin

Late 19th century.

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更新时间:2024/12/25 2:08:24