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单词 Hubble's constant
释义
  • Hubble's constant

    释义

    • [天文学]哈勃常数[亦作Hubble constant]
  • 英英释义

    Noun

    • 1. (cosmology) the ratio of the speed of recession of a galaxy (due to the expansion of the universe) to its distance from the observer; the reciprocal of the Hubble constant is the age of the universe
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