drainage stream 中文意思是什麼
drainage stream
解釋
排水小河-
A strike-valley sand is deposited in the drainage course of a subsequent stream valley.
走向谷砂巖是在次生河谷水系中沉積的。 -
The plans will be carried out in different stages, which involves 11 key projects, including : taipu river, wangyu river, dyke around the taihu lake, south - drainage in hangjiahu plain, water drainage and diversion in huxi, hongqitong, flood control in east - west tiaoxi, water drainage and diversion in wuchengxi, enlarging lanlugang, dredging liuhe and xietang, north drainage in hangjiahu, and flood prevention in the upper stream of huangpu river
該方案以流域防洪除澇為主，統籌兼顧供水，航運和環境保護等方面的利益，計劃分期實施包括太浦河、望虞河、環太湖大堤、杭嘉湖南排、湖西引排、紅旗塘、東西苕溪防洪、武澄錫引排、擴大攔路港疏浚泖河及斜塘、杭嘉湖北排通道及黃浦江上游防洪工程等十一項骨幹工程。 -
Fractal dimensions of the daily stream flow of malian drainage were calculated according to the fractal theory
摘要對馬蓮河流域各水文站的日徑流過程形態分維進行了對比分析。 -
In view of the existing problem in the traditional method of the compartmentalization of urban rainwater catchments basin, by the technology of partition of drainage basin and professional gis terrain disposal software, the paper proposes a method of automatically compartmentalizing the urban rainwater catchments basin by six steps : construct the grid dem, define the stream direction of grid nod, extract the catchments network, compartmentalize the sub - catchments, build urban rainwater catchments basin with sub - catchments, encode the rainwater catchments basin
摘要針對傳統匯水區劃分方法中存在的問題，利用流域地形分割技術，通過專業的gis地形處理軟體，建立了城市雨水流域匯水區的自動劃分方法，其劃分過程主要由構建格網dem 、格網點流向定義、匯流網路提取、子匯流區域劃分、子匯流區域生成城市流域匯水區和流域匯水區編碼6步組成。 -
On the basis of raster digital elevation model ( dem ) data over the laohahe river catchment in the upper and west area of the liaohe basin within inner mongolia autonomous region, the digital elevation drainage network model ( dednm ) is applied for assigning flow - vector directions over flat and depressional areas of the dem, for identifying stream network and watershed divides, and for establishing spatial topological structure of subcatchments and stream network
基於遼河水系老哈河流域柵格數字高程模型（ dem ）數據，採用數字流域水系模型（ dednm ） 、河流工具rivertools 、地理信息系統arcview軟體，根據地形提取水系信息，構建數字流域水系、子流域與河網的空間拓撲關系。 -
The alteration and conversion of natural streams to drainage channels has enhanced the natural capacity of freshwaters to assimilate volumes of floodwater and surface drainage, but channelisation also results in a loss of ecological capital stock since drainage channels cannot be colonised by normal stream assemblages of flora and fauna
有部分天然溪澗已改成渠道，這提高了淡水河道吸納洪水及地面排水的天然能力，但亦損害了生態方面的資產，因為渠道並非如溪澗一般可以供動植物棲息生長。
分享友人