China's icebreaker Xuelong returns to Shanghai after finishing 34th Antarctic expedition
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Aerial photo taken on April 21, 2018 shows China's research icebreaker Xuelong berthing at a dock in Shanghai, east China. China's research icebreaker Xuelong finished the country's 34th Antarctic expedition and returned to Shanghai on Saturday. The expedition began on Nov. 8, 2017 and covered a voyage of 38,000 nautical miles. [Photo: Xinhua/Fang Zhe]