... 复合飞行计划 composite flight plan 航天飞行计划 space flight program 结束飞行计划 closed flight plan ...
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We continue the story of the Apollo space flight program.
VOA: special.2009.07.15
The results of the two short flights made space officials believe the Mercury program was ready for its first orbital flight.
VOA: special.2009.06.17
Today we continue the history of the American space program with the flight of Apollo Thirteen, the flight that almost did not return home.
VOA: special.2009.07.22
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