Getting flight experience should help them win a slot on the station, says Stern.
获得飞行经验应该有助于他们在空间站赢得一席之地，斯特恩说。
The STS-133 mission to the space station will be Discovery's last flight before retirement.
STS-133任务将会是发现号退役前的告别飞行
A state estimation algorithm of the rocket flight path under single station measurement is studied.
研究了单测站测量的火箭飞行测量数据的状态估计算法。
This was the 129th U. S. space shuttle flight, and the 31st to the space station.
这是美国第129次航天飞机飞行，也是第31次飞往空间站。
This was the 129th U. S. space shuttle flight, and the 31st to the space station.
这是美国第129次航天飞机飞行，也是第31次飞往空间站。
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