... direct flight直飞；直航；直达班机 manned space flight载人太空飞行 time of flight飞行时间；渡越时间 ...
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the manned space flight project 载人航天工程
manned space flight network 载人航天跟踪网
manned space flight tracking network [航] 载人航天跟踪网
manned space flight laboratory 载人宇宙飞行实验室
the first manned space flight 首次载人太空飞行
convention on manned space flight 载人空间飞行公约
That was why he is favour of manned space flight, he said.
他说这也就是他赞成进行载人航天飞行的原因。
A more fundamental objection is that manned space flight is a waste of time.
更为坚决的反对在于载人航天飞行本就是浪费时间。
Even the Europeans, who are much richer, have not got manned space flight programmes.
即使是更为富裕的欧洲，也没有载人航天的计划。
The X-15 was the first major investment by the United States in manned space flight technology.
VOA: special.2010.07.07
NASA plans to retire the shuttle fleet, bringing US manned space flight to an end, for the forseeable future.
VOA: standard.2010.04.15
Their purpose was to explore some of the problems of manned flight, during short periods,in lower space.
VOA: special.2010.07.07
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