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来自维基百科，自由的百科全书
STS-39是歷史上第四十次太空梭任務，也是發現號太空梭的第十二次太空飛行。
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
