For forest watershed and shrub watershed, the annual mean runoff coefficient was affected by mean annual precipitation, mean annual evapotranspiration and mean slopegrade.
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；
2
In the construction of retaining wall with steep slopegrade, manual hole digging piles are adopted in combination with reverse working for ramming reinforced concrete wall panel.