B. overfall valve, reductor valve for ensuring stable system pressure.
溢流阀，减压阀，以保证系统的稳定压力。
Yushugou reservoir project is built in our country, it is the first overfall Concrete Face Rockfill Dam (CFRD) which has been carried out flood discharge.
榆树沟水库工程是我国建成并过流的第一座溢流混凝土面板堆石坝。
Based on the analysis of the control demands of the exterior overfall arc water gate, control system buildup, design of the control mode and the realizable control function are put forward.
本文在分析溢流表孔弧形工作闸门控制需满足要求的基础上，提出控制系统组成、控制方式的设计以及可实现的控制功能。
Based on the analysis of the control demands of the exterior overfall arc water gate, control system buildup, design of the control mode and the realizable control function are put forward.
本文在分析溢流表孔弧形工作闸门控制需满足要求的基础上，提出控制系统组成、控制方式的设计以及可实现的控制功能。
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