这些古老的恒星密度大得惊人。
相似质量的恒星可能在大小上有所不同,因为它们有着不同的密度。
Stars with similar masses might not be similar in size because they have different densities.
相似质量的恒星可能在大小上有所不同,因为它们有着不同的密度。
Stars with similar masses might not be similar in size because they have different densities.
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