UC知道●急！帮忙翻译一下这段有关航天的英文段落！！谢谢大家！
来源：百度知道 编辑：UC知道 时间：2024/05/15 06:26:02
For a list of spaceflights with human crews organised by program, see List of human spaceflights by program.
These chronological lists include all crewed spaceflights that reached an altitude of at least 100 km (the FAI definition of spaceflight), or were launched with that intention but failed. The USA has adopted a slightly different definition of spaceflight, requiring an altitude of only 50 miles. During the 1960s, 13 flights of the US X-15 rocket plane met the US criteria but only two met the FAI's. These lists include only the latter two flights; see the X-15 article for a list of all 13.
As of 07 April 2007, there have been 257 manned spaceflights that reached 100 km in altitude, of which 249 reached orbit successfully.
我会提高很多悬赏的！好心人帮帮我吧！
These chronological lists include all crewed spaceflights that reached an altitude of at least 100 km (the FAI definition of spaceflight), or were launched with that intention but failed. The USA has adopted a slightly different definition of spaceflight, requiring an altitude of only 50 miles. During the 1960s, 13 flights of the US X-15 rocket plane met the US criteria but only two met the FAI's. These lists include only the latter two flights; see the X-15 article for a list of all 13.
As of 07 April 2007, there have been 257 manned spaceflights that reached 100 km in altitude, of which 249 reached orbit successfully.
我会提高很多悬赏的！好心人帮帮我吧！
因为没有上下文，所以第一段看得不是很明白...
要得到一个有组织的带有工作人员的航空项目列表，来看一下人类航空项目的列表。
这些按年份排列的列表包括了所有达到海拔100公里（国际航空协会对航空的定义），或者以此为目标但失败了的载人航空。美国采用了一个有些不同的对航空的定义，只要求海拔达到50英里。在20世纪60年代，美国X-15火箭飞船有13次的飞行符合了美国的标准，但其中只有2次达到了国际航空协会的要求。这些列表中只包括了这两次。从关于X-15的文章里可以看到所有的13次飞行。
到2007年4月7日为止，一共有257次载人航空到达了海拔100公里的高度，其中有249次成功进入了轨道。