1) drainage system
水系网
1.
The formation of drainage system is affected by geological structure and natural environment, the shapes and distributions of drainage system are determined by different geological structures.
水系网的形成受地质构造和自然环境的影响，不同的地质构造决定了水系网的形状和分布。
2) river system network
水系网络
3) natural drainage system
自然水系网
1.
Based upon the information of natural drainage system we created, we established the calculation method of moving element in the system and gave the calculation of direction and indirection.
因此,利用自然水系网信息来定量分析元素沿水系的迁移、分散,对于地质找矿和环境保护都具有重要意义。
4) water system
水系
1.
The roles of water system planning for the ecological environment of Taiyuan;
太原水系规划对城市生态环境的作用
2.
Comments on the planning and construction of garden water system in Taiyuan city;
试论太原市园林水系规划和建设
3.
Through processing reform and water system regulation the waste water productivity produced in production process is controlled and decreased in the coking plant of Jinan iron and steel group generalcorporation.
济钢焦化厂在生产过程中控制、减少污水产生量，通过工艺改造和水系调整，使焦化工业水复用率达到98％以上，实现了生产用水闭路循环和工业废水零排放。
5) river system
水系
1.
Reflection correlated with the reasons that lead to the river system s exhaustion of Ancient Capital Chang an;
浅析古都长安水系衰竭的原因及其思考
2.
Neotectonic stress field in Three Gorges region inversed against river system by utilizing the improved GIS method;
基于GIS改进法水系反演三峡地区新构造应力场
3.
Sources of polycyclic aromatic hydrocarbons (PAHs) in the sediments of the Yili river system in Lake Taihu;
太湖宜溧河水系沉积物中多环芳烃来源解析
6) Drainage system
水系
1.
Cellular model for the form and development of drainage system;
水系形成与发展的元胞自动机模型研究
2.
Studying the needed catchment information of model based on study of distributed hydrologic model,in order to obtain the needed parameter information for designing the procedure to extract the catchment information,giving a serial number for each drainage system according to the water chain and obtaining the subcatchement based on water chain,some programms were developed.
为得到分布式水文模型所需要的参数,开发了程序进行流域信息提取,对得到的水系按水链进行编号,进而得到以水链为基础的子流域坡面。
3.
The result shown that the drainage system generated by the DEDNM is a.
简要回顾了利用数字高程模型自动提取流域水系的方法，着重介绍了Ｍａｒｔｚ和Ｇａｒｂｒｅｃｈｔ开发的数字高程流域水系模型（ＤＥＤＮＭ）的基本原理、模型结构、计算流程，包括数字高程模型中凹陷区域的识别和消除、平坦部位水流流向设定、流域分水线勾划、河网生成、河网与子流域编码及河网结构拓扑关系的建立，并将其应用于淮河史灌河流域——全球能量与水分循环亚洲季风试验强化观测区。
参考词条
补充资料：城域网(见计算机网络)
城域网(见计算机网络)
metropolitan area network, MAN
ehengyuwQng城域网(metropolitan area netwo次，MAN)分布范围可覆盖几个街区到整个城市的计算机网络。见计算机网络。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。