Grunsfeld will use the tool to do repairs on the Hubble Space Telescope.
格伦斯菲尔德将使用该工具做对哈勃太空望远镜进行维修。
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Former astronaut John Grunsfeld told reporters Tuesday about a stargazing experience he had on the station.
前宇航员约翰·格伦斯费尔德在周二向记者们讲述了他在空间站观测星星的经历。
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"It's that extreme clarity that gives us the feeling we've traveled out into space to see these objects," said Jon Grunsfeld, an astronaut who did repair work on Hubble during two shuttle missions.