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单词 high energy astrophysical observatory
释义

WordReference Random House Unabridged Dictionary of American English © 2024
High Energy Astrophysical Observatory, 
  1. Astronomyone of a series of three U.S. satellites launched (1977–79) into orbit around the earth and equipped with instruments for studying high-energy phenomena, as x-rays, gamma rays, and cosmic rays. Abbr.: HEAO

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