Surface water mainly from precipitation and off the water, precipitation, rainfall in the main flood season, water comes mainly from the old passenger Shahe, Song eight Tuan, sand east of the trunk.

地表水主要来源于降水及客水，降水以汛期降雨为主，客水主要来源于老沙河、宋八疃、沙东干渠。

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The precipitation forecast result in flood season of the last 10 years in Sichuan Basin is evaluated and compared with the NCC forecast result.

对近10年来四川盆地汛期降水预测水平进行了定量评估，并与国家气候中心预测水平作了对比。

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This method has been proved to have quite good synthetic decision abilities through the synthetic decision making in the forecasts of the precipitation in the 1997's flood season.

对1997年汛期降水预测所做的综合决策表明，该方法具有较好的综合决策能力。

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