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单词 cirrostratus
释义

WordReference Random House Unabridged Dictionary of American English © 2024
cir•ro•stra•tus  (sir′ō strā′təs, -strat′əs),USA pronunciation n., pl. -tus. 
  1. Meteorologya cloud of a class characterized by a composition of ice crystals and often by the production of halo phenomena and appearing as a whitish and usually somewhat fibrous veil, often covering the whole sky and sometimes so thin as to be hardly discernible: of high altitude, ab. 20,000–40,000 ft. (6000–12,000 m).
  • cirro- + stratus 1795–1805
cir′ro•stra′tive, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
cirrostratus /ˌsɪrəʊˈstrɑːtəs/ n ( pl -ti / -taɪ/)
  1. a uniform layer of cloud above about 6000 metres (20 000 feet)
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更新时间：2025/7/23 13:07:13