231 径流变率（variability of runoff）： 又称"模比系数"。指某时段的径流特征值(如年平均流量,年径流模数等)与该时段内的多年平均值之比,用小数或百分率表示,它反映径...
双语例句
1
The spatial variabilityofrunoff area has a great effect on the time-space input of sediment supply into rivers.
流域产流面积的空间变化对其产沙、供沙的时空输入特性具有制约作用。
2
Because of the spatial-temporal variability and inhomogeneity of natural factors and the uncertainty of human activities, runoff and sediment yielding is a complicated nonlinear process.