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Space
containing
一个
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all forms
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in specified order only
Chinese
English
一个
固体推进剂药柱
pulse
(在火箭发动机中如有两个药柱,工作就会有两次冲动,two-pulse rocket 也就是双药柱火箭)
一个
自由度
one-degree-of freedom
一枚导弹跟踪
一个
目标
bird-dog each target
三个一组
triad
下
一个
核大国
Nth country
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