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.
上世纪90年代初，福建省领导科学研究会曾邀时任宁德地委书记习近平对青年领导干部谈谈如何干好工作的问题，一篇《从政杂谈》引经据典、发人深省——
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这里用的是 平行光，模拟太阳光。
Гангстер одним ударом расправился с туристом в Таиланде и попал на видео18:08
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