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- river network morphology 河网形态
- Wuhu Municipal Planning Committee Anhui New Yangtze River Network Economy Development Co., Ltd. 芜湖市计委安徽新长江网络经济发展有限公司。
- Yangtze River Network銆?銆恏earing sauna sky, cool weather, the decoration began to "heat up". 桑拿天一过,天气凉爽了,装修也开始“热”起来。
- It is found that the flow in river network oscillates to and fro due to the action of tide and remarkably affects the transport process of pollutant. 分析结果发现,潮汐作用造成河流内水流往复震荡,对污染物的迁移过程影响较大;
- At first, plain river network region and its hydrologic characteristics and the current situation of design water research are elaborated. 论文首先阐述了平原河网地区及其水文特性,以及该地区设计水位计算的研究现状。
- River network and related watershed information directly derived from DEM, is the basis of development and application of distributed hydrological models. 从数字高程模型(Digital Elevation Models)直接提取河网及相关流域信息,是分布式水文模型开发与应用的基础。
- Panyu Jiang water around the ring, vertical and horizontal in the river network, developed over the past waterborne transport, land transport is very backward. 番禺江环水绕,境内河网纵横,过去水路交通发达,陆路交通却十分落后。
- Studies is made on the front damming technologies for NPS pollution control of river network in plain areas, so as to remove nitrogen and phosphorus of runoff. 本研究提出了平原河网地区面源污染前置库技术,以去除地表径流中的氮、磷污染物质,提出其系统结构,以及关键技术,并开展了示范工程规模上的研究。
- The anthropogenic activities such as river network change,lake reclamation and land use change were investigated about their role in the MWL change of Taihu Lake. 从河网水系变化、湖泊围垦和土地利用变化等方面分析了人类活动对太湖水位变化的影响。
- With a big flow rate, it is suitable for the use of plain river network area and hilly irrigation and drainage, piscina water supply and drainage industrial water supply and drainage. 本产品流量大,适用于平原河网地区和丘陵灌区,特别适用于农田排灌、鱼塘供排水及工业供排水。
- Finally, the software is testified with SRTM DEM data and other DEMs with 30s resolution in several drainage area. The river network generated from the software is accord with actual river. 最后本系统基于SRTM DEM数据和30s分辨率的DEM数据在多个流域进行了验证,生成的水系与实际水系吻合较好。
- On the basis of raster DEM data in the Baohe River basin, this paper presents an application of DEDNM to generate drainage network automatically, build digital basin, and extract drainage network to establish the topological river network structure. 本文基于褒河流域栅格数字高程模型DEM(Digital Elevation Model)数据,采用数字高程水系模型DEDNM(Digital Elevation Drainage Network Model),自动生成河网,构建数字流域,提取流域水系信息,建立流域水系空间拓扑关系。
- A kind of real time optimizing and operation model of water-logging drainage which is suitable to be used in river network region is founded by combining with current advanced technology of forecast. 论文对国内外除涝排水系统研究及主要成果进行了阐述,总结了目前除涝排水系统研究中存在的问题,提出了平原河网地区除涝排水的研究方向。
- Since there are no large fluctuations in stream flow and sediment concentration in a lower-water season, the real process on the river network can be simulated by the steady solution of the model. 考虑枯水期水沙动力学过程类似于固定流量和含沙量条件下的稳态,用该模型模拟预测了水流携沙系数(表征携沙力)和冲淤量沿河道分布的标度规律。
- Based on the hydrodynamics features,this paper builds a one-dimensional hydrodynamic mathematical model to simulate the variation of water level and flow rate in the tidal river network. 珠江三角洲水系属于典型的潮汐河网,水流同时受到地表径流及沿海潮位的双重影响。
- A new method is proposed in this paper to recognize and code river network of watershed.This method, based on water tank theory, can deal with billabong grids existed in the DEM as follows. 摘要本文应用水箱原理处理流域DEM数据中存在的洼地问题,提出流域河网识别及编码的新方法。
- With quite developed river network and convenient channels to the ocean,it is an effective way to use seawater as landscape water to improve water environment in Tianjin beachfront. 利用天津市滨海新区具有较发达的河网和方便的入海通道,将海水引入河道作景观水是改善水环境的措施之一。
- The river had worn a ravine between the hills. 那条河在两山之间已造成一个深谷。
- Can we dredge the river to make it deeper? 我们能不能把这条河疏浚得深一点?
- Navigation is difficult on this river because of the hidden rocks. 因为河上有暗礁,所以在这条河上航行很困难。