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1·The smaller the runoff coefficient is, the larger the runoff vary.

径流系数较小的流域，其变化幅度反而大。

2·The runoff coefficient and the erosion modulus are related to the rainfall.

其径流系数与侵蚀模数与次降雨量、降雨强度有一定的相关性；

3·Annual precipitation had significant effects on the annual runoff coefficient.

年降水量对年径流系数的影响极显著。

4·The increase of rainwater runoff, runoff coefficient increases, the formation of the ground.

汇流的雨水增加，径流系数增大，形成了地面的雨水径流。

5·Before 1980, no trend could be seen, but after 1980, the annual runoff coefficient tended to decrease.

年径流系数的变化和年径流量的变化相似，1980年以前无趋势性变化，1980年后有减小的趋势。

6·Adopting engineering measure and planting tree can decrease ground runoff coefficient and hold back ground runoff effectively.

坡面工程措施和造林可减小径流系数，能有效地拦蓄地表径流。

7·Landscape features within the basin land the size of the difference between the value of inter-month changes affect runoff coefficient.

流域内地块景观功能值之间差异的大小对月际间径流系数的变化有影响。

8·The runoff coefficient of every underlying surface was forecasted in different rainfall conditions by ANN models and compared with conventional method as well.

用该方法对不同降雨条件下每种下垫面的径流系数进行了预测，并与传统方法进行了比较。

9·For forest watershed and shrub watershed, the annual mean runoff coefficient was affected by mean annual precipitation, mean annual evapotranspiration and mean slope grade.

对于森林流域和灌木流域，其多年平均径流系数主要受多年平均降水量、多年平均蒸散量和平均坡度共同影响；

10·The designed flood peak flow in storm sewer is usually calculated by adopting a constant average runoff coefficient at present in China, simple as it is, it's not reasonable enough.

目前，我国采用单一地表的平均径流系数计算雨水管渠的设计洪峰流量，这虽然使计算简化，但不尽合理。