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        石堡寨

        石堡寨

        石堡寨位于陜西省閣樓鄉柴村2.5公里山頂,為宋代軍事防御設施,依據黃河天險,建筑平面為橢圓形,石板結構,四圍封閉,中空露天,出入口各一處。

          
          
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            91欧美激情一区二区三区成人