河道維護 的英文怎麼說

中文拼音 [hédàowéihù]
河道維護 英文
river maintenance
  • 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...
  • 道 : Ⅰ名詞（道路） road; way; route; path 2 （水流通過的途徑） channel; course 3 （方向; 方法; 道理） ...
  • 維 : Ⅰ動詞1 （連接） tie up; hold together; link 2 （保持; 保全） maintain; safeguard; preserve; keep ...
  • 護 : 動詞1. （保護; 保衛） protect; guard; shield 2. （袒護;包庇） be partial to; shield from censure
  • 河道 : river course; streamway; covalency; runway; cut; river channel河道變遷 channel change; migration ...
  • 維護 : safeguard; defend; uphold; keep; maintain; upkeep
  1. Energy losses leading to a decrease in head are also done away with, likewise losses in flow rate from the screening installations, both of which can have a detrimental effect on the efficiency of the facility. the constructional effort required for a hydrodynamic screw is small compared to that required for a turbine. if the compact version of a hydrodynamic screw hydrodynamic screw trough power take - off unit combined as a single unit is used, the constructional effort can be further reduced

    水力螺旋機技術的優點有：無需監控系統，可自行調節水體供給和供給頻率運行效率高於水輪機和小型渦輪機效率梯度平穩轉速低20rpm - 80rpm ，運行穩定防磨損無需定期清潔，易維護對河道湖泊里的魚蝦無損害基礎工事少，安裝簡便無堵塞，無需隔欄裝置能量利用充分等。
  2. It decides the protective objectives for different ecological reserve area based on the study of channel wetlands and survey and analysis of top - grade species ( fishes ) of the yellow river : from the point of the basin, the main ecological protective objectives of the tipper stream are vegetation and forest for conservation of water supply ; soil and water conservation is the main in the middle reaches for vegetation protection and rehabilitation and ; the lower reaches takes types of wetlands protection and wetlands area maintenance as the main, protecting biodiversity and important birds resources

    在黃河河道濕地研究和黃河水體內頂級物種（魚類）的調查分析基礎上，確定了黃河不同類型生態保護區的生態保護目標：從流域角度而言，黃河上游的主要生態保護目標是植被和水源涵養林；中游應以水土保持為主，主要是恢復和保護植被；下游以保護濕地類型和維持濕地面積為重點，保護生物多樣性和重要鳥類資源。
  3. 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
  4. 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
  5. Aiming at the 28km long river regulation and protection works on fuyuan reach where the river evolutions are complicated and the dimensions of control works are difficult to calculate, this dissertation is to study three - dimensional numerical analogue not only under natural conditions but also under ten regulation schemes, using the river sediment quasi - two - dimensional model associated with the river sediment plane two - dimensional model and the river three - dimensional model

    針對江道演變復雜，工程布局及控導工程結構尺寸難以計算的撫遠28公里長江段的防護整治工程，按天然情況和10個不同整治方案利用河流泥沙準二維數學模型、河流泥沙平面二維數學模型和河道三維水流數學模型結合進行三維整體的數值模擬。
  6. The provinces, autonomous regions and municipalities directly under the central government threatened by floodwater may, for the purpose of strengthening the construction of flood control works and improving the capacity for flood control within their administrative regions and according to the relevant provisions of the state council, stipulate the levying of a fee for construction, maintenance and administration of river course projects within flood control protected areas

    受洪水威脅的省、自治區、直轄市為加強本行政區域內防洪工程設施建設，提高防禦洪水能力，按照國務院的有關規定，可以規定在防洪保護區范圍內徵收河道工程修建維護管理費。
  7. Technical code of inland waterway maintenance

    內河航道維護技術規范
  8. This paper proposed ten landscape strategies as following : keep and intensify the overall natural landscapes ; protect and restore diverse native habitats ; preserve and restore natural forms of rivers and seashores ; protect and restore wetland system ; integrate suburban greenbelts into urban green space systems ; establish auto - free greenways ; open unite green space ; etc

    為此，本文提出了維護和強化整體山水格局的連續性；保護和建立多樣化的鄉土生境系統；維護和恢復河流和海岸的自然形態；保護和恢復濕地系統；將城郊防護林體系與城市綠地系統相結合；建立無汽車綠色通道；開放專用綠地；建立鄉土植物苗圃基地等十大戰略。
  9. Based on the analysis of the application of 3 - d geonet sprig - grass in regulation engineering of downstream beijiang river, the conclusion is drawn that this technique can not only satisfy the need of sideslope reinforcement, but also improve the ecological environment of the river bank and promote environment protection, thus it is a practical technique worthy of popularizing

    摘要通過三維土工網植草在北江下游航道整治工程中的實際應用分析，得出該技術不僅能夠加固護岸邊坡，而且能夠改善河岸生態環境，具有環保功能，是值得推廣應用的新型技術。
  10. Beyond the cleanup, hangzhou ' s ultimate goal is to secure world heritage site listing from the united nations for this transport artery that connected china ' s great west - to - east river systems, carrying the goods, taxes and official communications that sustained successive dynasties

    除清理以外，杭州的最終目標是從聯合國世界遺址名單上的要求來保護這條連接中國東西部河道系統、運輸貨物、稅款和官方聯絡以維系朝代傳承的交通動脈。
  11. This paper proposed ten landscape strategies to establish such future - oriented ecological infrastructure, including : 1 ) keep and restore connectivity of the overall natural landscapes ; 2 ) protect and restore diverse native habitats ; 3 ) preserve and restore natural forms of rivers and seashores ; 4 ) protect and restore wetland system ; 5 ) integrate suburban greenbelts into urban green space systems ; 6 ) establish auto - free greenways ; 7 ) open unite green space ; 8 ) dissolve parks into urban green matrix ; 9 ) protect agricultural fields and integrated them into the green matrix of the built up urban area ; 10 ) establish native plants nurserys

    為此，本文提出了十大戰略，包括維護和強化整體山水格局的連續性；保護和建立多樣化的鄉土生境系統；維護和恢復河流和海岸的自然形態；保護和恢復濕地系統；將城郊防護林體系與城市綠地系統相結合；建立無汽車綠色通道；開放專用綠地；溶解公園，使其成為城市的生命基質；溶解城市，保護和利用高產農田作為城市的有機組成部分；建立鄉土植物苗圃基地。
  12. Nowadays the determination of eco - environmental in stream flow requirements for rivers has been widely studied in the research of ecological health maintenance for rivers and water resources optimization allocation

    摘要河道內生態環境需水量的合理量化是河流生態系統健康維護和水資源優化配置中亟待解決的熱點問題。
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