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Sirenum Fossae

火星壁纸

by NASA/JPL/ASU

NASA Image Library · 公有领域（Public Domain）

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The downdropped block of surface seen in this image captured by NASA 2001 Mars Odyssey spacecraft is called a graben. The graben is younger than the crater, since the crater is cut by the graben.

壁纸设置方法见各平台设置指南。

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