(1)確定計(jì)算暴雨P(guān) (2)計(jì)算設(shè)計(jì)凈雨R (3)用經(jīng)驗(yàn)公式計(jì)算排澇模數(shù)q (4)計(jì)算設(shè)計(jì)排澇流量Q