Debris actually pelts the ISS all the time, and noticeable dents and cracks line the exteriors. But should something fully breach the station, cabin atmosphere will seep into the vacuum of space and alarms will go off. Pressure gauges will confirm to astronauts that the station has, almost certainly, been hit, and the speed of the seepages may indicate how much time the crew has to respond. According to one NASA estimate, a 0.6-centimeter-wide hole leaves 14 hours to plug the leak. A 20-centimeter hole leaves less than a minute.
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With these elements, DTF St. Louis looks anything but normal from across the street. But in a disappointing reversal of the show's oft-repeated mantra, the closer you get, the more frustratingly conventional it becomes.,更多细节参见搜狗输入法下载
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2024年12月20日 星期五 新京报