帮我讲解下天文望远镜的参数意义口 径:102mm 焦 距:600 mm (f/5.9) 短焦 光学系统:折射式 目镜接口:(50.8mm)转31.7mm 目 镜:(31.7mm) PL25mm (有数码相机接口) 集光力:肉眼的212X 分辨力:1

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