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单词 heat shield
释义

WordReference Random House Unabridged Dictionary of American English © 2024
heat shield′, [Aerospace.]
  1. Aerospacea coating or structure that surrounds part of the nose cone or other vulnerable surfaces of a spacecraft and, by heat absorption or ablation, protects them from excessive heating during reentry.
  • 1955–60

Collins Concise English Dictionary © HarperCollins Publishers::
heat shield n
  1. a coating or barrier for shielding from excessive heat, such as that experienced by a spacecraft on re-entry into the earth's atmosphere
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