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ScienceCasts: 观测站的地球观测

美国宇航局发射了一个臭氧传感器，藉此帮助监测臭氧层的长期变化。SAGE III传感器将于2017年安装在国际空间站上。 点击这里查看更多视频：https://alugha.com/NASA 更多内容请访问http://science.nasa.gov/。 http://www.nasa.gov/station 此视频是2017年的。

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