The traditional Space Telescope(ST) with such a large primany mirror can not be launched to GEO, for its total mass is more than 1 000 t.

传统的空间相机，如果要有如此大的口径，其总质量将超过1 000 t，无法发射到GEO上。

youdao

Case 1 When NASA began the launch of astronauts into space, they found out that the pens wouldn"t work at zero gravity (ink won"t flow down to the writing surface).

例一当美国航空航天局准备将宇航员送往太空时，他们发现钢笔在零重力情况下写不出来（墨水无法流出来印到书写材质上）。

youdao

If you don't have 1 GB of hard drive space for Descent 3, you'll need a CD-ROM to play the movies (and to access data files on a bare minimum install).

CNN: Review: The lowdown on Descent 3 for Linux