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Aerial photo taken on Dec. 20, 2019 shows China's polar icebreaker Xuelong 2, or Snow Dragon 2, conducting scientific researches in the Cosmonauts Sea. (Xinhua/Liu Shiping)
Xuelong 2 conducts scentific research in Cosmonauts Sea
Source: Xinhua| 2020-01-21 18:47:51|Editor: mingmei
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