单词：cosmological constant
cosmological constant的用法和样例：
例句
- Therefore, the irreducible warp of the brane acts like a cosmological constant, which speeds up cosmic expansion.因此，这膜上无法消除的时空弯曲就表现的如同宇宙常数，导致了宇宙的加速膨胀。
- But to produce the observed acceleration of the universe, the constant's density would have to be twice that of matter.但若想造成现今观测到的加速膨胀，则这个宇宙常数的能量密度须为物质密度的两倍。
- If only conservation forces act, the kinetic energy plus the potential energy remains constant.如果只受保守力的作用，则动能加势能是一个恒量。
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