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单词
open universe
释义
WordReference Random House Unabridged Dictionary of American English © 2024
o
′
pen u
′
niverse,
[
Astron.
]
Astronomy, Physics
a model of the universe in which the universe expands forever because there is not enough mass to counteract the expansion by means of gravitational attraction. Cf.
closed universe.
1975–80
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更新时间:2025/7/23 9:56:08