短語詞組短語compound cross -bedding 復合交錯層理choppy cross -bedding 皺紋狀交錯層理zigzag cross -bedding 鋸齒狀交錯層理hummocky cross -bedding 圓丘狀交錯層理pseudo cross -bedding 假交錯層理foreset cross -bedding 前積交錯層理torrential cross -bedding 急流交錯層理;急流交錯層trough cross -bedding 槽形交錯層tabular cross -bedding 板狀交錯層理 返回 cross bedding