比径流 meaning in Chinese

specific run off

The proportions of soil and water losses caused by heavy rain ( or storm ) were 65 % ~ 75 % and > 80 % respectively . there was extremely significant positive correlation between rainfall and runoff amount , while not - significant correlation between rainfall and soil loss was found
降雨量与径流量的均呈极显著线性相关，降雨量越大，径流量越大;而降雨量与土壤流失量的相关性明显小于降雨量与径流量的相关性，影响土壤流失量的因素比径流量复杂。