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所属栏目：探索发现
所属频道：CCTV-10科教
年份：2010
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简介：对于许多人来说，这是他们第一次通过望远镜看到天空，当在镜筒下终于看清了月亮上的环形山，甚至看到了像草帽一样的土星之后，人们的喜悦之情溢于言表。可是望远镜的前世今生是怎样的呢？收起
以镜观天400年
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