最終更新日：2024/08/04
The lee face of a sand dune where the surface is at the angle of repose for sand (33–35°).
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slipface
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The lee face of a sand dune where the surface is at the angle of repose for sand (33–35°).
slipface
DiQt（ディクト）
無料
★★★★★★★★★★
