美国航空航天局说新的技术飞跃将取代航天飞机。
NASA says that the shuttles will be succeeded by new leaps forward.
这样的击中可能会导致错误的电压读数而触发重新启动，美国航空航天局说。
Such a hit could result in erroneous voltage readings that trigger a reboot, NASA said.
美国航空航天局说，所有新火箭约百分之四十是以失败告终，战神i - X火箭不能排除在这种可能性之外。
About 40 percent of all new rockets end in failure, NASA has said, and Ares I-X is not exempt from those chances.
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