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单词 parhelic circle
释义

WordReference Random House Unabridged Dictionary of American English © 2024
parhelic circle, [Meteorol.]
  1. Meteorologya white, horizontal band passing through the sun, either incomplete or extending around the horizon, produced by the reflection of the sun's rays from the vertical faces of ice prisms in the atmosphere. Also called parheliacal ring. 
  • parhel(ion) + -ic 1885–90

Collins Concise English Dictionary © HarperCollins Publishers::
parhelic circle n
  1. a luminous band at the same altitude as the sun, parallel to the horizon, caused by reflection of the sun's rays by ice crystals in the atmosphere
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