保安身边的扩音器循环广播安全提示。
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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.，推荐阅读快连下载-Letsvpn下载获取更多信息
Rascoff reads every message: Ideas from confidential messages get shared broadly with staff, and when an employee includes their name, he’ll follow up with them directly.