海量資源,盡在掌握
 比降i流量范圍(m3/s)選擇斷面(cm)水深范圍(m)砌護(hù)高度(m)圖號(hào)比降i流量范圍(m3/s)選擇斷面(cm)水深范圍(m)砌護(hù)高度(m)圖號(hào)比降i流量范圍(m3/s)選擇斷面(cm)水深范圍(m)砌護(hù)高度(m)圖號(hào)1/3000.015~0.035D200.15~0.250.30011/12000.018~0.045D300.20~0.3 (本文共 7485 字 ) [閱讀本文] >>