Template:Motd/2013-04-17 (zh-hans)

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大爆炸开始后76万年的微波背景辐射。这些辐射处理至可听频率并被压缩为100秒的音频模拟。

This is the Simplified Chinese translation of the Media of the day description page from 17 April 2013.

Descriptions in other languages: