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当前位置：科技 > 科技专题 > 2009日全食 > 正文

不推荐的日食观测方法(1)

2009-07-20 19:14:11 【大中小】发表评论

常见不安全的观察太阳的方法包括：

1.用倒入墨汁的水盆观察太阳--水的表面会反射明亮的阳光。

12 3 4...下页尾页共6页

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