SCIENTIFICAMERICAN  |  Space & Physics

What Are Light Echoes, and Why Do They Matter?

光回声是什么，它们为什么重要？

What Are Light Echoes, and Why Do They Matter?
2025-08-08  1349词  困难
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Of course, nature figured this out somewhat earlier than I did; many species of animals use this fact to map out their surroundings using echolocation.

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