障防是一个汉语词语，意思是堤防；堤坝。也指为堤防所阻挡。也有设置障碍以防备的意思。
亚特兰蒂斯号2002年在执行飞行任务的过程中，一橡胶密封圈破裂，左固体火箭助推器受损，好在当时没有防障任务的执行或影响飞行计划的完成。
During the 2002 Atlantis flight, a piece of insulation broke off and damaged the left solid rocket booster but did not impede the mission or the programme.
那末务求不宽大，能够取舍有油泵，加上一些防油净化措施，如加冷阱、障板、挡油阱等，也能达成肮脏真空务求。
Then the view is not large, to choose a pump, plus some oil purification measures, such as the Canadian cold trap, baffle, retaining the oil wells, but also in order to reach a dirty vacuum.
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