forecasting runoff

例句：

1. 1.The forecasting model predicted a heavy rainfor the next two days.
   预报模型预测未来两天将有大雨。
2. 2. Theforecasting runoff isexpected to cause flooding in thelow-lying areas.
   预计的预报流量将在低洼地区引发洪水。
3. 3.The forecasting runoff has been reducedby 20% due to improvedirrigation techniques.
   由于改进灌溉技术，预报流量已减少20%。