河流的分級 的英文怎麼說

中文拼音 [héliúdefēnjí]
河流的分級 英文
order of streams
  • 河 : 1 （天然的和人工的大水道） river 2 （指銀河系） the milky way system; the galaxy 3 （特指黃河） t...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 河流 : rivers; stream
  1. The main process of regional ecological risk assessment includes 5 stages : regional analysis, risk receptor selection, risk sources analysis, exposure and hazard analysis, and integrated risk assessment. arming at flood, drought, storm tide, petroleum pollution accident and flow breaking in the lower huanghe river, the probability and distribution of each kind of risk sources are evaluated. the authors bring forward indexes and formulas to measure hazarded degree and risk value of ecosystem. by using remote sensing data, historic record, survey data and by means of geographical information system, regional ecological risk assessment is finished. on the basis of assessment result, the environmental risk management countermeasure of the huanghe river delta is advanced

    以黃河三角洲為例進行了區域生態風險評價理論和方法的探討。針對黃河三角洲主要生態風險源洪澇乾旱風暴潮災害油田污染事故以及黃河斷流的概率進行了分級評價並提出度量生態損失與生態風險的指標和公式，分析了風險源的危害作用運用遙感資料歷史記錄調查數據和地理信息系統gis技術，完成了區域生態風險綜合評價在此基礎上提出黃河三角洲的區域生態風險管理對策。
  2. ( 3 ) according to compensation benefit formation cause and scientific, rational, impartial, equitable distribution principle, put forward distribution project of water supply and generation electricity compensation benefit in the main stream of the yellow river

    （ 3 ）根據補償效益成因分析及科學、合理、公平、公正的分配原則，提出黃河幹流梯級水電站補償效益中的供水和發電效益的初步分配方案。
  3. Built up the optimal compensation regulation model of cascade hydropower stations for water resources system in the main stream of the yellow river, adopted poa method to solve optimal model in order to analysis water supply and generation electricity compensation benefits, discussed its distribution project and implementation countermeasures

    本論文主要針對黃河幹流水資源系統建立幹流梯級水庫、電站補償調節優化模型，採用逐步優化演算法（ poa ）求解模型，定量分析計算了黃河幹流水量以及電量補償效益，探討了黃河幹流補償效益的分配方案和實施對策。
  4. According to the abundance well logging, mud logging and core analysis data, gaotaizi reservoir has been classified into four sand group with the principle of cycle comparison and classified control. based on the detailed study of lithologic character, sedimentary structure, paleontologic fossils, depositional sequence, rock association and logging data, the microfacies of the studied area are divided into such seven types : subaqueous distributary channel microfacies ; river mouth bar microfacies ; subaqueous interdistributary channel microfacies ; subaqueous crevasse channel microfacies ; subaqueous natural barrier microfacies ; distal bar microfacies ; delta front sheet sand microfacies. the characteristic of each sedimentary microfacies are described detailedly

    通過研究大量測井、錄井資料和巖芯資料，依據「旋迴對比，分級控制」的原則，把研究區高臺子油層劃分為g 、 g 、 g 、 g四個砂層組。通過對研究區巖性、沉積構造、古生物、沉積序列、巖石組合及測井曲線特徵進行研究的基礎上，認為研究區高臺子油層屬於三角洲前緣亞相沉積，並將研究區沉積微相劃分為：水下分流河道、河口壩、水下分流河道間、水下決口扇、水下天然堤、遠砂壩、席狀砂等七種微相類型。
  5. The landscape around the rivers and streams has been severely modified, leaving little of the natural vegetation to buffer water flowing overland to the streams, further resulting in water pollution. the rivers themselves have also been severely modified with the construction of large number of dams and regulation works, said dr alan leung, senior conservation officer, wwf hong kong

    世界自然基金會香港分會高級環境保護主任梁士倫博士表示：據2003年一項研究發現，西江流域約八成原生森林已經消失，而河流鄰近地帶和溪澗亦經人類大幅改造，導致在河水暴漲時可用作緩沖區的天然植物大為減少。
  6. At the end of late pleitocene, influenced by the climate of glacier period, the last great event of the region in the geological time was taken place so that the migration and extinction of organism species were resulted, loess accumulation was generally developed throughout the whole region, in the holocene, the most important environmental change was fluvial process, which was still influnced by two factors - neotectonics and palaeoclimatic changes

    更新世晚期末，受末次冰期氣侯的影響，本區發生了地史時期的最後一次大事件，造成了物種遷移和絕滅，全區廣泛發育黃土堆積。進入全新世，本區環境變化以河流作用最為顯著，沉積物主要分佈在各大水系的河谷中，構成一、二級階地和近代河床與河漫灘堆積。
  7. In this paper, according to the characters of river ecosystem, the concept of ecohydrological regime is proposed, and the multi - parameter system of the ecological water requirements ( minimum and appropriated ecological water demand, ecological water requirement in flood season ) are established, which are regarded as flow requirement for river health

    本文首先從河流生態系統特性入手，提出生態水文季節，構建了多參數生態需水（最小生態需水、適宜生態需水、洪水期生態需水）體系並分析其內涵，組成了能反映河流生態系統健康的流量等級。
  8. Water resources condition in zhejiang and its sustainable utilization

    中國地下水資源系統三級分區及其在海河流域的應用
  9. The article, divided into 3 periods, describes the history of the development of zhujiang river ' s waterway transportation, and gives us a true picture of zhujiang river ' s waterway transportation in the following aspects : societal economy of zhujiang river valley, present conditions of fairway, harbors, ships and supporting & guarding systems such as waterway transportation industry, communication, piloting, and etc. the main contents include the characteristics of zhujiang river ' s layout, the fulfillments of zhujiang river ' s waterway transportation and the quantities of passengers and cargoes that zhujiang river carried, laying emphasis on the conveyance method and characteristics of zhujiang river as a main and important waterway transportation channel, and introducing characteristics of the fairway layout of the zhujiang river, present conditions of fairway grading structure, layout characteristics of the harbors in zhujiang river valley, harbor ' s handling capacity & container harbor ' s present situation, and gross tonnage & layout characteristics of shipping capacity of zhujiang river valley, ships " technical conditions and transportation methods

    論文分三個階段論述了珠江航運發展的歷史沿革。從珠江流域社會經濟、航道、港口、船舶，以及水運工業、通訊導航等支持保障系統等方面論述了珠江航運的發展現狀，分析了珠江水系河流分佈特點，珠江航運生產，客貨運輸量，並重點論述珠江水系水運主通道和重要河道的運輸方式和運輸特點；珠江航道分佈特點、航道等級結構現狀；珠江水系港口分佈特點、港口吞吐量及集裝箱港口現狀；珠江水系船舶運力的總量、結構及分佈特點，船舶的技術狀況、運輸方式等。論文分析了珠江航運發展存在問題及制約因素，珠江航運發展存在的主要問題，一是內河航運建設資金投入不足；二是水資源未得到綜合利用；三是航運管理體制不順；四是技術裝備落後，限制了內河航運優勢的整體發揮。
  10. The application to qingjiang cascade hydropower plants shows that the proposed model can give the controlling rules for optimal dynamic flood storage and elevates the efficiency of reservoir system management and utilization of flood water

    該模型應用於清江流域梯級水庫，計算結果表明，在不降低水庫及梯級原有的防洪標準前提下，能有效利用上游水布埡水庫的防洪庫容，分擔隔河巖水庫部分防洪任務，並顯著提高梯級水庫發電量。
  11. Depending on how the ground surface is denuded, the feature of the current crustal stress field and rock stress environment can be calculated analyzing the result in this paper : by analyzing the recovering feature of the elastic deformation of the rockmass in unload - stage under various pressures, it has been found there is close relationship between the recovering degree of the elastic deformation of the rockmass and the unloading degree of the pressure the direction of the major principal stress in the crustal stress field is not consistent with the direction of the crushing stress regional tectonics borne during the last tectonic movement. the evolving degree of the regional geomorphology evidently affects the current crustal stress field, which changes from the self - weight stress field to the horizontal stress field, with the changing of the eroding degree of the regional geomorphology ranging from valley area to hilly country to flat country. in valley area, where there is two stress belts, the bankslope s tress belt and the self - weight stress belt within the mountain. the direction of the major principal stress is nearly parallel to the ground surface and inclines towards the valley in the bankslope stress belt. it is nearly vertical in the self - weight stress belt

    通過本文的研究成果，根據區域性地貌的演化特徵，我們可以大致地對現今地應力場進行判斷：在分級卸荷條件下，巖體中彈性變形的恢復具有明顯的規律性，這種規律對于研究地應力場的演變是有幫助的；地應力場中最大主應力方向與區域構造形跡在最近的構造運動中所受區域性擠壓應力的方向無明顯的對應性；區域性地貌形態的演化程度對現今地應力場的特徵具明顯的影響，隨著區域性地貌侵蝕程度由峽谷區、丘陵區、平原區的變化，現今地應力場特徵由自重應力場、水平應力場為主含少量自重應力場特徵向水平應力場的規律變化；在峽谷區，山體中具有兩個應力帶：自重應力帶和卸荷應力帶，最大主應力方向在卸荷應力帶中近平行於坡面並傾向于河谷、在自重應力帶中近於直立；根據原始地面遭剝蝕的程度，可以大致地估算最大主應力和中間主應力的量值和方向；在丘陵區和平原區，最大主應力的方向近於水平，並與附近區域性侵蝕盆地和河流的展布方向基本平行，根據原始地面遭剝蝕的程度，可以大致估算其最大主應力的量值；根據區域性地貌形態的特徵來分析工程區的現今地應力場特徵，並進而大致了解巖石的應力環境，這種分析方法得出的結論與許多實際的地應力測試成果基本一致，對于大型水電工程地下廠房和壓力隧洞的設計是有所幫助的。
  12. The objective of this research is to test the rcc from ] st to 6th order streams of changjiang river watershed in southern mountain area of anhui province, to explore the function and structure of macroinvertebrate community succession rule of the river. the changjiang river water quality asse ssment is carry on by comparison of the community characters of the point - pollution or non - point pollution sites to the hypothesized rcc, the macroinvertebrate community structure indices and bi index were used in the assessment

    本文對閶江河底棲動物群落結構和功能進行了系統研究，運用河流連續性理論對該河一至六級支流各取食功能團比例的演替規律及毛翅目成蟲的群落結構進行了比較分析，並通過計算底棲動物群落結構指數和bi指數，對該河進行了水質評價。
  13. In consideration of the present situation in china, it is suggested that we should make out the ecological functional division of rivers, plan and set various conservation targets for different rivers, and confirm corresponding conservation levels so as to enforce river conservation and restoration

    結合我國的具體國情，建議應用「生態支持配置」概念，盡快規劃我國河流生態功能分區，設定不同區位的生態保護目標和等級，確定相應的保護水平，分區、分類、分級實施河流保護與修復。
  14. This paper is one of the important components of the project " the sustained development on the yellow river drainage basin between humans and environment "

    本論文是河南大學人文地理省級重點學科基金資助項目「黃河流域人地關系可持續發展研究」的一個重要組成部分。
  15. By the methods of remote sensing ( rs ) and geographic information system ( gis ), and based on the estimations of degradation degree, risk degree anti easy - restoration degree of degraded grasslands, an ecological management index ( emi ) model of grassland was established to approach the practical ways of optimizing management of degraded grassland

    摘要利用遙感監測和空間信息分析技術，通過對退化草地的退化等級評估、風險度評估以及易恢復度評估，構建了草地生態優化管理指數（ emi ） ，探討了退化草地生態優化管理的實踐途徑；並以錫林河流域為例，分析了退化草地生態優化管理指數。
  16. Finally, on the basis of available water supply analytical equilibrium analysis analyzed water and soil equilibrium about yeerqiang river of 2010 、 2020 years, incorporated plantation suitability scale distribution and quantity in support to establish exploitation scale for the future according to the principle which take the water to determine plantation in the end, produced safeguard mechanism to exploit rationally and utilize plantation resources in support

    最後，在葉爾羌河2010年、 2020年可供水量分析的基礎上進行了水土平衡分析，依據后備耕地適宜性等級分佈及數量，按以水定地的原則確定了葉爾羌河流域后備耕地在今後的開發規模。提出了合理開發利用后備耕地資源的保障措施。
  17. Based on analysis of magnetic effect mechanism of alluvial cohesive soil, according to the distribution and character of river alluvial cohesive soil of first and second terrace of yongjiang river of nanning, pore water chemical characteristic, especially total iron content in pore water and holding form of iron ion in pore water, this text preliminarily divides the river alluvial cohesive soil of first and second terrace of yongjiang river of nanning into two magnetic effect region : reinforced region and weaker region of magnetic effect

    摘要在分析粘性土磁效應機理的基礎上，根據? 、級階地河流沖積相粘性土的分佈及其特性和孔隙水化學特性，尤其是孔隙水中的總鐵含量以及鐵離子的賦存形式，將南寧市邕江? 、級階地河流沖積相粘性土初步劃分為磁效應強化區、磁效應較弱區兩個磁效應區。
  18. By use of the model, the gdp change, the benefit per unit water, the water flow into sea and the discharge change of main river section are obtained for beneficial regions of the south - to - north water transfer

    通過模型框架，將水資源系統中的宏觀經濟子系統和水資源子系統相互作用通過內生變量聯接起來，分析南水北調西線工程對黃河流域受水區的影響，得到黃河流域二級區不同配水方案相對于無調水情況的gdp變化、單方水效益、人海水量和主要斷面流量過程變化等。
  19. First, the system builds the model of the bank and bottom of river, according to the river ’ s information and the information of the scene on the two side of the river. second, i read and preprocess the model file data and implement the organization and encapsulation about the space data of the virtual river. in the end, adopting to use these rending technology, such as show list, priority texture, and level of detail, i realize the real - time and vivid showing of the three dimension river ’ s virtual scene and provide abundant ways of people ’ s interacting with the virtual scene, on base of sufficiently making use of the memory of vision card and the cpu of the computer

    它主要融合虛擬現實技術、三維數據可視化技術、面向對象的設計和編程技術，在vc + +平臺上，利用opengl三維圖形開發庫，以真實的城市河道現狀信息和周邊景物信息為依據，對河道、河底的三維空間數據進行三維幾何建模;然後通過讀取和預處理模型文件數據，實現虛擬場景空間數據的組織和封裝操作，並對空間數據進行優化;最後採用顯示列表、紋理優先級、細節層級模型（ lod ）等渲染技術，利用opengl的渲染特性，在充分發揮顯卡內存、處理器等各種軟硬體資源的基礎上，實現三維河流實時逼真的真實感虛擬場景顯示，並提供豐富的人機交互手段。
  20. At present, our country has already made some basin correlated with managing in the basin and legislated, have established the differentiated control in the changjiang river, the yellow river, huaihe river, haihe river, pearl river, loose liaohe river, seven major basin of tai hu, have played certain function on the water resource protecting the basin

    目前，我國已經制定了一些與流域管理相關的流域立法，確立了長江、黃河、淮河、海河、珠江、松遼河、太湖七大流域的分級管理，對保護流域的水資源起到了一定作用。
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