回顾！“雪龙2”号的南极探索之旅完成了哪些任务？

Core Viewpoint - The "Xuelong 2" icebreaker has successfully completed its mission for China's 41st Antarctic expedition, covering over 40,000 nautical miles and marking significant milestones in Antarctic research and logistics [1][4]. Summary by Sections Mission Overview - The "Xuelong 2" embarked on its journey from Guangzhou on November 1 of last year, with the mission divided into five distinct segments, each focusing on different tasks [1][2]. Segment Details - The first segment involved navigating to Antarctica to assist the "Xuelong" icebreaker with logistics at Zhongshan Station, completing personnel and material transfers by early December [1]. - The second segment included a journey from Zhongshan Station to the Ross Sea, where it aided the "Yongsheng" vessel in icebreaking operations, concluding with a return to Lyttelton, New Zealand by late December [1][2]. - The third segment commenced after picking up ocean team members in Lyttelton on January 9, heading to the Amundsen Sea and completing related oceanographic tasks by mid-March [2]. - The fourth segment began in late March, focusing on the autumn ocean joint survey in the Ross Sea, which was completed by April 19, leading to the start of the fifth segment [2]. Achievements - Throughout the expedition, "Xuelong 2" achieved several firsts, including the first cargo transfer for the "Xuelong" and the first autumn ocean operations in Antarctica [4]. - The total duration of the mission exceeded seven months, making it the longest single-ship operation in the history of China's Antarctic research [4].