Photo taken on Dec 3, 2014 shows a helicopter hauling a box near the Chinese Icebreaker Xuelong, or Snow Dragon, which carries a Chinese scientific expedition team. The team is preparing to head for the Antarctic Zhongshan Station, a Chinese scientific research base in Antarctica. [Photo/Xinhua]

Members of the Chinese scientific expedition team on the Icebreaker Xuelong, or Snow Dragon, prepare to head for the Antarctic Zhongshan Station, a Chinese scientific research base in Antarctica, Dec 3, 2014.[Photo/Xinhua]