A controlled deorbit requires the use of several core systems, including those for communications, power, and avionics. Some of the ISS machinery was not specifically certified to perform in a depressurized environment. (NASA believes that critical systems would remain operable, based on technical analyses, and emphasizes that many of these systems are already used in vacuum.) Another thing to worry about: the ISS losing control over its orientation in space. The spacecraft could start tumbling, flipping the station’s solar arrays away from the sun, taking the primary source of power with it.
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杜耀豪有一个大他七岁、感情甚笃的姐姐，姐姐两岁便来到德国，比他更早融入这片土地。而母亲，那个总在提醒他“记住根”的女人，1981年到德国后，在鱼店工作了整整三十年。。旺商聊官方下载对此有专业解读
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