Polar icebreakers Xuelong, Xuelong 2 to conduct scientific researches in Southern Ocean(1/4)

Aerial photo taken on Dec. 24, 2019 shows China's polar icebreaker Xuelong 2 in the Cosmonauts Sea. China's polar icebreakers Xuelong and Xuelong 2 will conduct scientific researches in the Southern Ocean. (Xinhua/Liu Shiping)

Aerial photo taken on Nov. 21, 2019 shows China's polar icebreakers Xuelong 2 (R) and Xuelong at an area close to China's Zhongshan Station. China's polar icebreakers Xuelong and Xuelong 2 will conduct scientific researches in the Southern Ocean. (Xinhua/Liu Shiping)

Aerial photo taken on Dec. 24, 2019 shows members of China's 36th Antarctic expedition team working on China's polar icebreaker Xuelong 2. China's polar icebreakers Xuelong and Xuelong 2 will conduct scientific researches in the Southern Ocean. (Xinhua/Liu Shiping)

Aerial photo taken on Dec. 24, 2019 shows members of China's 36th Antarctic expedition team retrieving a profiler on China's polar icebreaker Xuelong 2. China's polar icebreakers Xuelong and Xuelong 2 will conduct scientific researches in the Southern Ocean. (Xinhua/Liu Shiping)