Mabira is also a vital watercatchmentarea for the country's lakes and rivers.
马比拉也是国家湖泊河流重要的水源地。
2
The watercatchmentarea of rain leader shall be determined based on whether the rainwater hopper and gutter are set up, and the calculation of water depth before the rainwater hopper.
雨水立管的汇水面积应结合是否安装雨水斗、是否设置天沟及斗前水深进行计算确定。
3
This paper describes the principles of ecotype hydraulic protection and related treatment techniques for gentle slope, steep slope, gully head, scouring gully, watercatchmentarea and revetment.