1.space exploration 太空探索

例句：In space exploration and Earth observation, you have capabilities around the world.

在空间探索和地球观测方面，你可集合全世界力量lyf7ND)5Sd-。

2.scientific value 科学价值

例句：Brick palace with a very unique artistic value and scientific value.

砖雕地宫具有十分难得的艺术价值和科学价值.

3.orbiting satellite 轨道卫星

例句：I believe this Chinese decision to go green is the 21st-century equivalent of the Soviet Union’s 1957 launch of Sputnik — the world’s first Earth-orbiting satellite.

我认为，中国在21世纪决定走绿色发展道路，其重要性可以和苏联在1957年发射的世界上第一颗人造卫星“斯普尼克号”相媲美]IhBeCq@b4D+8F[5。

4.space race 太空竞赛

例句：The space race reached its culmination in the first moon walk.

太空竞争以第一次在月球行走而达到顶峰.