利用GIS方法建立了数字高程模型（DEM），研究了子汇水面积的边界。
By means of GIS method, the digital elevation model(DEM)is established, the subcatchment boundaries are studied.
摘要汇水面积和汇水量是多孔路面或透水路面设计的重要参数。
Abstract Catchment area and catchment rainfall are important parameters of porous or permeable pavement design.
鄂尔多斯盆地周边岩溶分布区由22个汇水面积不等的岩溶地下水子系统组成。
The karst groundwater system in Ordos basin consists of 22 sub-systems with various catchment sizes.
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。
The water catchment area 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。
The water catchment area 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.
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