sammer12125 - p/l1a0va - 讀噗

@sammer12125

Tue, Jun 16, 2015 9:32 PM

What is an Optical Telescope? - What is an Optical Telescope? | Astronomy Spot

載入新的回覆

© Jeremy Lam "JLChnToZ", part of Explosive Theorem Lab. projects. 免責聲明
This site uses Twemoji, © 2020 Twitter, Inc and other contributors.