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引力辅助
释义
引力辅助
Encyclopedia
理学
星际飞行
释
gravity assist
引力辅助
航天器近距离飞越围绕同一中心天体(太阳)运行的天体(大行星),借助被所飞越天体的引力改变相对中心天体(太阳)的公转轨道,可大幅节省推进工质的过程。又称引力弹弓、借力飞行或近旁转向。
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file allocation table
file allocation table, FAT
file allocation time
file attribute
file backup
file checking program
file contention
file covers/ binding case
file created time
file creation
file design
file directory
file emergency management
file fragmentation
file handle
file-item list
file level sorting
file maintenance
file management
file management of place names
file management system
file management system, FMS
file meristem
file method
file modified time
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