| 单词 | closed universe |
| 释义 | closed universe [¦klōzd `yü·nǝ´vǝrs] ASTRONOMY A cosmological model in which the volume of the universe is finite and in which the expansion of the universe will slow to a halt billions of years in the future, and the universe will then contract, becoming progressively denser, until it ends in a fireball similar to the big bang. |
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