The array's 20-foot-wide telescopes, spread across several acres, don't send messages into space but scan the cosmos for signals of extraterrestrial origin.
这个20英尺射电望远镜阵列，分布在几英亩的区域上。 它们并不向太空发射信号，而是扫描宇宙搜寻地外的信号源。
The array's 20-foot-wide telescopes, spread across several acres, don't send messages into space but scan the cosmos for signals of extraterrestrial origin.
这个20英尺射电望远镜阵列，分布在几英亩的区域上。 它们并不向太空发射信号，而是扫描宇宙搜寻地外的信号源。
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