Template:Potd/2011-01-24 (zh-hans)
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This is the Simplified Chinese translation of the Picture of the day description page from 24 January 2011.
克鲁克斯辐射计包括一个密封的半真空玻璃球。里面有安装在主轴的叶片集。叶片接触到光时旋转。
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