A researcher of China's icebreaker Xuelong records data on Antarctic ice zone, Nov. 29, 2016. Chinese research vessel and icebreaker Xuelong (Snow Dragon), which is on its 33rd Antarctic expedition, got held up in ice zone about 31 kilometers away from Zhongshan Station on Tuesday. Expedition team have started to explore the way on ice to find a safe way for unloading at Zhongshan. (Photo/Xinhua)
