![](http://www.ecns.cn/hd/2019/12/16/05eaea9084bd47b0a41b2fbd3039267d.jpg)
Team members of China's 36th Antarctic expedition withdraw the gravity piston sampling device on China's polar icebreaker Xuelong 2 in the Cosmonauts Sea on Dec. 15, 2019. The expedition will conduct multidisciplinary observations on the sea, atmosphere, ice shelf and biology. (Xinhua/Liu Shiping)
![](http://www.ecns.cn/hd/2019/12/16/37219a05ec7d4a47b4fa9c6643a3f71e.jpg)
Aerial photo taken on Dec. 15, 2019 shows China's polar icebreaker Xuelong 2 conducting research in the Cosmonauts Sea. The expedition will conduct multidisciplinary observations on the sea, atmosphere, ice shelf and biology. (Xinhua/Liu Shiping)
![](http://www.ecns.cn/hd/2019/12/16/11a29f9bb99747758e57ced249fdf1b1.jpg)
Team members of China's 36th Antarctic expedition withdraw the gravity piston sampling device on China's polar icebreaker Xuelong 2 in the Cosmonauts Sea on Dec. 15, 2019. The expedition will conduct multidisciplinary observations on the sea, atmosphere, ice shelf and biology. (Xinhua/Liu Shiping)
![](http://www.ecns.cn/hd/2019/12/16/236672871c184cff912332088b4b5d35.jpg)
Aerial photo shows team members of China's 36th Antarctic expedition withdrawing the gravity piston sampling device on China's polar icebreaker Xuelong 2 in the Cosmonauts Sea on Dec. 15, 2019. The expedition will conduct multidisciplinary observations on the sea, atmosphere, ice shelf and biology. (Xinhua/Liu Shiping)