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来源:雅诚德英语网
Along with the cluster's dense core, the outer reaches of M13 are highlighted in this sharp color image.
除了星团稠密的核心,这张锐利的彩色照片还突出了M 13的外延范围。
Along with the cluster's dense core, the outer reaches of M13 are highlighted in this sharp color image.
除了星团稠密的核心,这张锐利的彩色照片还突出了M 13的外延范围。