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在丰满大坝的溢流坝段,设有11个溢流孔,每孔均装有一扇尺寸为12.7米×6米的平面钢闸门。闸门顶水封的结构见图1所示。这
There are 11 overflow holes in the spillway section of Fengman Dam. Each hole is equipped with a flat steel gate with a size of 12.7mx6m. The structure of the gate top seal shown in Figure 1. This