《空间政策指令3》为美国制定了一般性指南，以减轻空间碎片的影响以及跟踪和管理太空交通。
Space Policy Directive-3 lays out general guidelines for the United States to mitigate the effects of space debris and track and manage traffic in space.
美国家航空与太空局的工程师们判定，一些指令文件在地球与土星之间被阻断。
Nasa engineers determined that some command files were corrupted en route from Earth to Saturn.
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