File talk:PIA17603 Erosion by Scarp Retreat in Gale Crater, Annotated Version.jpg

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Explanation from source problems

[編輯]

If there are "arrows indicating wind direction", I sure can't find them, here or at the source.

Also, I can't find an explanation of the "X" on the skyline. Just sayin' --Pete Tillman (對話) 16:35, 22 September 2016 (UTC)[回覆]

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