标题：银河系扭曲的银盘在摇摆着进动
年份：2020
尺寸 ：21.92 x 32.85 cm
Title: The Milky Way's Twisted Silver Disk Is Swingingly Precessing
Year: 2020
Dimension: 21.92 x 32.85 cm
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©️ Boshan Zhou.
