Topic:cosmogenycosmogonycosmology
Synset:Hubble's constant Hubble's parameter Hubble constant Hubble parameter
Hypernyms:constant
Inherited Hypernyms:hubble's constantconstantnumberdefinite quantitymeasureabstractionentity
| 单词 | hubble's parameter |
| 释义 | Hubble'S Parameter nnoun.quantity(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 Hubble constant is not actually a constant, but is regarded as measuring the expansion rate today Topic:cosmogenycosmogonycosmology Synset:Hubble's constant Hubble's parameter Hubble constant Hubble parameter Hypernyms:constant Inherited Hypernyms:hubble's constantconstantnumberdefinite quantitymeasureabstractionentity |
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