The outline of the masonry arch dam is double-curved, the dam body is impervious, the crest spillway is built of slotted-type bucket and the mid-discharge orifice is slit-type bucket.

模型试验和实际运行表明，浆砌石拱坝体型、坝体防渗及泄水建筑物等设计是成功的。

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Because of the dual-orifice design, there is a preset controlled pressure differential for the secondary steam system, while maximum pressure differential is available to discharge the condensate.

由于采用了双阀孔结构设计，在最大压差下排放凝结水的同时，还有一个为二次蒸汽系统设计的预设压差系统在工作。

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According to hydraulic principle, the change of efficient water head, discharge coefficient and discharge of orifice along porous pipes have been discussed and checked by experiments in this paper.

运用水力学原理，对多孔配水管孔口出流量公式的孔口作用水头、孔口流量系数及沿程孔口出流量的变化问题进行了理论分析和试验验证。

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