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Aerial photo taken on Jan. 7, 2020 shows China's polar icebreaker Xuelong 2, or Snow Dragon 2, conducting scientific research in the Cosmonauts Sea. (Xinhua/Liu Shiping)
Aerial photo taken on Jan. 7, 2020 shows China's polar icebreaker Xuelong 2, or Snow Dragon 2, conducting scientific research in the Cosmonauts Sea. (Xinhua/Liu Shiping)