dobsonian telescope
... Dobsonian reflector 多布森反射望远镜 Dobsonian telescope 多布森望远镜 dominant galaxy 主星系 ...
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在91岁时,多布森作为热衷于制作廉价望远镜的人,他终于在1956年时制造出第一个。
At age 91, Dobson is as passionate about building inexpensive telescopes as he was when he built his first one in 1956.
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