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以加格达奇水文站自1970年建站以来的实测资料,通过P-III型频率曲线计算,推求1%频率洪峰流量为3450m3/s。
Based on the measured data of the Jiagedaqi Hydrological Station since its establishment in 1970, the peak flow rate at 1% frequency is calculated to be 3450m3 / s through the P-III frequency curve calculation.