river system 中文意思是什麼
river system
解釋
河川系統-
The dissertation reviews the agriculture production history, analyzes the status quo, the change of river system, soil evolvement and the forming course of economic position, and discusses the precondition of the agricultural development of the hhh plain. the agricultural system database of the hhh plain is set up by using mapgis software
總體上考察了黃淮海平原農業生產歷史、現狀形勢；淺析了黃淮海平原的水系變遷，土壤演變過程及其經濟區位條件的形成，初步探討了該平原農業發展的先決條件。 -
The research indicates that the climate character which is the temporal coupling of aridity, lack of rain and excessive wind, together with the thick sand matter sediment of the west liao river system, lead to the frangibility of environment in keerqin sandlot. in the recent years, there is a seriously lack of water resources. about 50 p
研究表明：該地區氣候特徵表現為乾旱、少雨、多風在時間上的耦合，加之西遼河水系巨厚的沙物質沉積，構成了科爾沁沙地生態環境的脆弱性』 o近些年來，水資源嚴重短缺，由於降水減少和不斷採集地下水，近50的湖、泡己乾涸。 -
Simply put, hong kongs river system was reaching a crisis point, and concerted action was needed in order to put a stop to the degradation of this crucial natural resource
這顯示香港河溪系統已瀕臨危機，只有同心協力消減污染，才可遏止這珍貴的自然資源進一步的惡化。 -
The congarees, a frontier fort on the west bank of the congaree river, was the head of navigation on the santee river system
位於congaree河流西岸的congarees是一個貿易邊境站，同時也是santee流域的領航點。 -
Furthermore, sorting of the sandstones in the braided river is better compared with that of in the meandering river system. in the same subfacies, grain size is larger and sorting is better in the channel sandstones which developed with large - scale cross - beddings such as trough cross - bedding, compared with sandstones in the flood microfacies. in the same microfacies, better sorting and coarser grained sandstones are distributed in the middle and lower part of the unit
與曲流河亞相相比，辮狀河亞相砂巖的粒度較粗，分選性較好，砂體多次疊置而規模更大；相同河流亞相的河道微相與泛濫平原微相相比，前者的砂巖粒度較粗、分選性較好，發育槽狀交錯層理等大型層理構造；在同一微相內，處于中下部的流體單元其粒度較粗，分選較好。 -
Based on the analyses of water quality monitoring data of over 120 hydrometric stations in the yangtze river system during the last 30 years, the effect of lithology and climate rainfall on major ion chemistry of the river water has been studied by means of statistical approaches such as principal component analysis and correlation analysis
在分析長江流域120餘水文站點近30年水質監測數據的基礎上，運用主成分分析相關分析等數理統計方法研究巖性和氣候條件降水量對長江水系河水主要離子化學的影響。 -
In china, the impacts from ice mountain degradation, including water resource shortage, frequent inundation, wet land degeneration and reduced stability of river system etc. are more obvious with each passing day
在中國，冰山的退化所產生的影響日趨明顯，其中包括水資源短缺、水患頻發、濕地退化和河流系統穩定性降低等。 -
River system is an open system integrating various elements such as economy, society and entironment, in which substance and energy have direct or indirect exchanges through the activities concerned with water and thus there is evolution in different ways
摘要河流系統是一個經濟社會、自然資源、生態環境相互耦合的開放系統，它通過水事活動直接或間接地與外界進行物質與能量交換，促使系統形成不同時空演化格局。 -
In this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes
本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的 -
Abstract : in this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes
文摘:本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的 -
Construction of ecological river system around new jiangwan city
新江灣城建設生態水系河道 -
Through comprehensive analysis of monitoring results of water quality of huang river, da hei river system and hui river system over ten years, the change tendency is exposed, and the problems in each river pollution section which are urgent to be resolved are put forward
摘要對黃河（過境） 、大黑河水系及渾河水系十年水質檢測結果進行綜合分析，揭示其變化趨勢，並針對各河流污染斷面提出急需解決的問題。 -
Morphology and sediment evidence are also proposed. it is indicated that river captures are the responses of river system for tectonic upheaval
研究表明，河流襲奪是河流系統對區域構造抬升與地貌面解體變化的響應與表現。 -
By that time the choices of settlements for jiu - she type and kavalan were influenced by river system but not sea invasion
舊社類型與噶瑪蘭族聚落位址的選擇不再受到海侵的影響，轉以河系分佈作為考量的因素。 -
Channel deposits, consisting of sand, silt and clay, fill the valleys cut by a river system.
河道沉積由砂，粉沙和粘土組成，充填于河流切割的河谷之中。 -
And others are found, and the expression of minimum rate of energy dissipation of flow is re - derived based on the theory of minimum entropy production. ( 2 ) it will be pointed out that the entropy is different from the entropy production in a river system
（ 2 ）指出河流系統中的熵與熵產生是兩個不同的概念，沖積河流在調整過程中，力求使水流的熵產生或能耗率趨于最小值，而不是使熵趨于最大值。 -
Can install on the road at the pipe of any seat, preventing the medium go against the current, the boiler is to river system all last times, and namely his attended mode is using original pipeline both ends flanges can dive into the operating to the clamp
可在任何位置的管路上安裝，防止介質逆流，鍋爐給水系統上回，其連接方式是利用原有管道兩端法蘭對夾即可投入運行。 -
Young, d. l., lin, w. l., lin, y. s., et al, 1998. 08, reservoir operation strategy for a mountainous reservoir - river system during floods, water resources engineering 98, acse, memphis, tenn. usa, pp. 1020 - 1025
許銘熙，楊德良， 1998 . 06 ，超臨界劉河段水理分析方法及治理規劃準則，經濟部水資源局研究計畫報告， 1998年6月。 -
Abstract : the dongjiang river, as one of main streams of the pearl river system, is the important water system in eastern guangdong province. this paper analyzes the water quality of dongguan reach in the dongjiang river in mid and late 1990 ( 1994 1999 ) and, on the basis of this, studies the rule of seasonal change of the water quality and discusses the developing tendency of the water quailty
文摘:東江是珠江水系的主要幹流之一，是廣東東部至關重要的水系，文中詳細分析了東江東莞段90年代中後期的水質狀況，在此基礎上研究和探討了東江東莞段水質的季節變化規律及其水質變化趨勢。 -
Automatically extracting river system from digital elevation model
基於數字高程模型的水系自動生成
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