Hellow guys, Welcome to my website, and you are watching 5分钟看懂天文望远镜能放大多少倍？什么是口径和焦距？. and this vIdeo is uploaded by 星空摄影酱油颜 at 2024-12-20T05:11:17-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.