532| 7
|
機憶械新(4)——太空制造技術(shù) |
| ||
點評
希望在年輕一代
| ||
點評
地球資源越來越少,遲早面向太空
| ||
小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
GMT+8, 2024-9-21 08:43 , Processed in 0.051704 second(s), 15 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.