runoff modulus

基本解释

The runoff coefficient and the erosion modulus are related to the rainfall.
其逕流系數與侵蝕模數與次降雨量、降雨強度有一定的相關性；
Then water inflow in tunnel is forecasted using groundwater dynamics and groundwater modulus of runoff.
然後利用地下水動力學法、地下水逕流模數法對隧道開挖湧水量進行了預測。
In the upper-middle Jinghe watershed of Malian river, annual stream runoff and runoff modulus almost have no change during the last 30 years. But in the whole watershed the stream runoff decreases;
在涇河流域馬蓮河分流域，年逕流和逕流模數在過去30年中基本維持穩定，整個涇河流域年逕流量逐年下降；