| 单词 | ground frost |
| 释义 | > as lemmasground frost ground frost n. (also ground-frost) a frost on the surface of the ground, or in the upper layer of the soil (see also quot. ground n.). ΘΚΠ the world > the earth > weather and the atmosphere > weather > cold weather > [noun] > freezing or frosty weather > frost > specific types black frosta1425 wet frost1832 radiation frost1889 ground frost1900 1900 Daily News 12 Oct. 5/1 Towards night, the thermometer fell briskly, and it seemed probable that a sharp ground frost would occur. 1958 H. M. Hayward & M. Harari tr. B. Pasternak Dr. Zhivago ii. viii. 249 Probably there's still ground frost in the mornings. 1963 Meteorol. Gloss. (Meteorol. Office) (ed. 4) 122 From 1906 to 1960, inclusive, the [British] Meteorological office practice was to record a ‘ground frost’ when the grass minimum thermometer reached 30°F or below... From 1 January 1961..no statistics have referred to ‘ground frost’. The use of the term ‘ground frost’ in forecasts signifies a grass minimum temperature below 0°C (32°F). < as lemmas |
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