drainage network

Most of distributed hydrological models are based on DEM ( Digital Elevation Model), by which we can extract drainage network automatically.

分布式水文模型大多基于DEM（数字高程模型），通过DEM，可以自动提取流域的地貌特征，其中包括流域数字河网的生成。

Study on the gas drainage technique of network

瓦斯抽放技术网络化研究

GIS-based extraction of drainage network density and it's application to flood hazard analysis

GIS支持下的河网密度提取及其在洪水危险性分析中的应用

Study of extracting drainage network of watershed from digital elevation model

基于DEM流域河网水系的提取研究

The supporting public facilities include water drainage, electric power communication and road network.

配套公用设施包括给排水 、 电力通信、路网等.

Influence of base level lowering on sediment yield and drainage network development: an experimental analysis

侵蚀基准面下降对水系发育与产沙影响的实验研究

In the construction technology, the three-dimension drainage network is used to instead of the sand bedding course, and put into practice in field test area with actual engineering.

施工工艺中提出三维土工排水网替代砂垫层的新思路，结合实际工程在现场试验区加以实施。

New Stormwater drainage network.

新的雨水排放系统.

The drainage network is an important component of basic facilities of a city.

城市排水管网是城市基础设计的重要组成部分,在市政建设中有十分重要的地位.