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2013-05-23 12:21
求翻译：Very little is known about the size of the universe. It may be trillions of light years across, or even infinite in size. A 2003 paper[20] claims to establish a lower bound of 24 gigaparsecs (78 thousand million light years) on the size of the universe, but there is no reason to believe that this bound is anywhere near tight. See shape of the Universe for more information.是什么意思？ 待解决
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Very little is known about the size of the universe. It may be trillions of light years across, or even infinite in size. A 2003 paper[20] claims to establish a lower bound of 24 gigaparsecs (78 thousand million light years) on the size of the universe, but there is no reason to believe that this bound is anywhere near tight. See shape of the Universe for more information.
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