Galilean telescope
柯林斯词典
1. N a type of telescope with a convex objective lens and a concave eyepiece; it produces an erect image and is suitable for terrestrial use 伽利略望远镜
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1. N a type of telescope with a convex objective lens and a concave eyepiece; it produces an erect image and is suitable for terrestrial use 伽利略望远镜