| 1. | An example from recent times would be the facts obtained from the apollo missions .
如果从现代来找例子，则可以举出“阿波罗号”飞行所获得的事实。 |
| 2. | Developed in early 60 ’ s by nasa to “ fail - proof ” apollo missions
60年代初，由美国太空空署在阿波罗任务中发展起来的。 |
| 3. | After the last apollo mission in 1972 , no one set foot on the moon again
自1972年最后一次太阳神计划后，便再无人踏足月球。 |
| 4. | After the last apollo mission in 1972 , no one set foot on the moon again
自1972年最后一次太阳神计划后，便再无人踏足月球。 |
| 5. | It is appropriate that some time be devoted to thorough study of the results of the apollo mission
拿出时间对阿波罗登月计划的结果做详细研究是恰当的。 |
| 6. | The new exploration plan would allow four astronauts to stay on the moon for a week - twice as long as apollo missions
新的探索计划将允许四名宇航员在月球上停留一个星期，比“阿波罗”号在月球停留的时间多出一倍。 |
| 7. | The new exploration plan would allow four astronauts to stay on the moon for a week - twice as long as apollo missions
新的寻找计划好的策划将允许4名宇航员在月球上停留一个星期，比“阿波罗”号在月球停留的时间多出一倍。 |
| 8. | The longest apollo mission , though , lasted no more than 12 days , and samples were kept within the apollo spacecraft and thus not exposed to the full space - radiation environment
不过，为时最长的阿波罗任务不过12天，标本又保存在阿波罗宇宙飞船舱内，因此并非完全处于宇宙辐射的环境之下。 |
| 9. | The moon is the only celestial object other than earth that humans have visited . from the late 60s to the early 70s , u . s . a . had six crewed missions to the moon , called the apollo missions
月球是人类唯一踏足过的天体，自六十年代末期至七十年代初，美国名为阿波罗登陆月球计划，便有六次升空任务能成功登陆月球。 |
