返回轨道设计关系着亚轨道飞行器能否安区返回。
Return trajectory design is related to the safe return of the vehicle.
亚轨道飞行器飞行任务的主要特点是任务多样，任务时间间隔短。
Mission diversity and short preparation time are the main features of Suborbital Launch Vehicle.
亚轨道飞行器飞行任务的主要特点是任务多样，任务时间间隔短。
Mission diversity and short preparation time are the main features of Suborbital Launch Vehicle.
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