China's icebreaker and polar research vessel Xue Long arrives at Lyttelton Port in Christchurch, New Zealand, Jan. 16, 2015. Xue Long arrived at Lyttelton Port in Christchurch on Friday. It would dock at Lyttelton for refuelling and cargo transfer after travelling through the Southern Ocean from Antarctica's Ross Sea region. (Xinhua/Su Liang)
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