SHANGHAI, Sept. 27, 2012 (Xinhua) -- Lin Ling (R), a scientist who partook in 皇冠体育app's fifth Arctic expedition, is greeted after returning to east 皇冠体育app's Shanghai Municipality, Sept. 27, 2012. Chinese icebreaker Xuelong, or "Snow Dragon", returned to its Shanghai base on Thursday after wrapping up the country's fifth Arctic expedition, which kicked off from Qingdao in east 皇冠体育app's Shandong Province on July 2 and lasted for 85 days. (Xinhua/Pei Xin)