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Satisfactory solutions of the scour of rocky riverbeds downstream from outlet structures have not been found as yet. 泄洪建築物下遊巖石河牀的沖刷問題，至今尚未得到滿意的解決，關(guān)鍵是河牀基巖模擬方法的準(zhǔn)確、可靠性。