以下为句子列表：
英文: Both the cosmological constant and quintessence fall into the general category of dark energy.
中文: 不管是宇宙常数还是第五元素，都属于暗能量的範畴。
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英文: In 1998 astronomers discovered that the universe's expansion is accelerating at a rate consistent with a cosmological constant 10-120 times the value predicted by quantum theory.
中文: 天文学家于1998年发现到宇宙正在加速膨胀，但其加速度所对应到的宇宙常数，却是量子理论预测值的10-120倍。
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英文: In principle, physicists might like to examine one or a few vacua having the right cosmological constant to see if they offer testable predictions.
中文: 原则上，物理学家会想挑几个有正确宇宙常数的真空来检验，看看它们是否做得出可试验的预测。
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英文: The leading candidate to explain dark energy's effects is vacuum energy, which is mathematically equivalent to the cosmological constant that Einstein invented in 1917.
中文: 要解释暗能量效应的首选，便是真空能量，它与爱因斯坦在1917年所创的宇宙常数，在数学上是等价的。
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