中国为什么要建设空间站？

参考文献：

[1]周建平.我国空间站工程总体构想[J].载人航天,2013,19(02):1-10.

[2] Voorhies, A.A., Mark Ott, C., Mehta, S. et al. Study of the impact of long-duration space missions at the International Space Station on the astronaut microbiome. Sci Rep 9, 9911 (2019)

[3] MRI reveals long-term effects of space travel on the brain, https://physicsworld.com/a/mri-reveals-long-term-effects-of-space-travel-on-the-brain/