fall frost 中文意思是什麼

fall frost 解釋
秋霜凍
  • fall : vi (fell; fallen )1 落下;散落,(毛發等)脫落;降落;(水銀柱等)下降;(物價)下落,跌落;(...
  • frost : n 1 霜;霜柱;結霜;冰凍,嚴寒;冰點以下的溫度。2 (態度、感情等的)冷淡,冷酷。3 〈俚語〉(演劇...
  1. During winter nights and under clear skies, the ground surface is cooled rapidly by radiating heat off to space. the air temperature near the ground will also fall and when the grass temperature drops below zero degrees celsius, hoar frost will form by direct sublimation of water vapour onto the grass surface

    在冬天的晚上,如果天氣晴朗,地面的熱量會透過輻射快速散失,貼近地面的空氣也同時降溫,當草面溫度降到攝氏零度以下時,空氣里的水蒸氣便會在草面凝華成為白茫茫的霜。
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