以下为句子列表:
英文: The proportionality constant, H, is known as the Hubble constant and quantifies how fast space is stretching—not just around us but around any observer in the universe.
中文: 其中的比例常数H,就是所谓的哈伯常数,它可以把空间向外延伸的快慢予以量化,不只针对我们周遭,也适用于宇宙中所有观测者的周围。
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