Since the start of satellite records in 1979, total Antarctic sea ice has increased by about 1% a decade, according to Nasa.
据NASA的消息，自从1979年卫星开始记录以来，十年内南极海冰总数已经增长约1%。
Viewers can add comments, keywords and identify people in images in the three sets - Launch/Takeoff, Building NASA, and NASA Center Namesakes, which records historical figures.
图片浏览者能够添加评论，关键词，在三个图集——“发射”、“NASA建设”与“用历史人物命名的NASA宇航中心”上圈人。
Viewers can add comments, keywords and identify people in images in the three sets - Launch/Takeoff, Building NASA, and NASA Center Namesakes, which records historical figures.
图片浏览者能够添加评论，关键词，在三个图集——“发射”、“NASA建设”与“用历史人物命名的NASA宇航中心”上圈人。
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