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Nature and Science

Nature and Science

所属栏目: Nature and Science

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分类:外语 - 英语

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播放时长:27:35

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Nature and Science

所属视频集:Nature and Science

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分类:外语 - 英语

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首播栏目:Nature and Science

时长:27:35

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    1、When He Zhongyuan took the photo at river in Chongqing, the UFO image in the photograph taken at river in Chongqing. How did He Zhongyuan take this photo? In fact the ghost image is created by the optical system of the receptor or detector. 2、When we discuss the pollution sociate with urban development one of the hardest problem is increasing mount electric lighting. It is estimated that the sky brightness increases by 5% each year. If it gets worse, it will definitely reduce scientific output.

 

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