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Aerial photo taken on Dec. 1, 2019 shows China's icebreakers Xuelong (top) and Xuelong 2 at an area close to China's Zhongshan Station in Antarctica. (Xinhua/Liu Shiping)
Aerial photo taken on Dec. 1, 2019 shows China's icebreakers Xuelong (top) and Xuelong 2 at an area close to China's Zhongshan Station in Antarctica. (Xinhua/Liu Shiping)