If they have time, astronauts and cosmonauts will look to plug the leak or close the hatch to the leaking section of the station. (That is how they dealt with a minor leak in the station’s PrK module for a number of years, and it basically worked.) Remember, though, that this is the worst-case scenario, and our crew will run into a hard deadline. Once pressure falls to around 490 mm Hg, NASA says, critical systems risk breaking down. Astronauts could suffer hypoxia, oxygen deprivation so debilitating they could become delirious. It will be a heart-wrenching call, but if nothing else can be done, the crew will need to go to their crew vehicles and leave the ISS.
（四）故意制作、传播计算机病毒等破坏性程序的；
。爱思助手下载最新版本是该领域的重要参考
Family in tribute to Oasis fan who died at Wembley
She added: "If we adopted a more rational approach we could have the benefits of growth from AI, focus our attention on exporting the clean tech the rest of the world needs, and protecting nature here and abroad."