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With Hubble's powerful capabilities, the team was able to side step some of the shakiest rungs along the previous distance ladder involving uncertainties in the behavior of Cepheids.
有了哈勃望远镜的强大能力，团队就能直接跨过某些不稳定的台阶：（由于清晰度不够，）先前对这些造父变星行为的观测不是很准确。
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