File:刘堡减水闸 石堤和地工结构.jpg
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![File:刘堡减水闸 石堤和地工结构.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e1/%E5%88%98%E5%A0%A1%E5%87%8F%E6%B0%B4%E9%97%B8_%E7%9F%B3%E5%A0%A4%E5%92%8C%E5%9C%B0%E5%B7%A5%E7%BB%93%E6%9E%84.jpg/800px-%E5%88%98%E5%A0%A1%E5%87%8F%E6%B0%B4%E9%97%B8_%E7%9F%B3%E5%A0%A4%E5%92%8C%E5%9C%B0%E5%B7%A5%E7%BB%93%E6%9E%84.jpg?20171007061540)
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