流水率定 的英文怎麼說

中文拼音 [liúshuǐlǜdìng]
流水率定 英文
moving water rating
  • 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...
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 流水 : 1 （流動的水） running water; stream2 （舊時指商店的銷貨額） turnover （in business）流水搬運作用...
  1. Firstly, the status of our nation ' s water resources, flood and arid hazards is overviewed to illustrate the necessity for study on dynamic control of flood season limited water level. disadvantages in traditional limitsd water level design, static control of limited water level design, static control of limited water level and fuzzy limited water level curve are pointed out, and mending methods for these are introduced. dynamic control and its key problems are analyzed hi next section. the allowable range of limited water level is determined, so as the allowable extreme risk index. the definition of extreme risk is re - illustrated, risk analysis methods in reservoir operation is discussed either. according to the definition of extreme risk rate, the allowable extreme risk rate of reservoir is systematically demonstrated with variant extreme risk indexes and flood season limited water level

    本文首先闡述了我國水資源狀況和水旱災害、說明水庫汛期限制水位動態控制研究的必要性；介紹了傳統汛限水位設計、汛限水位靜態控制、模糊汛限水位過程線存在的問題及其初步改進方法；分析汛期限制水位動態控制的方法及關鍵問題；進一步闡述了水庫極限風險率的定義；根據極限風險率定義，詳細敘述了不同極限風險指標時、不同汛期限制水位下起調，水庫所能承受的極限風險率計算方法。然後，基於極限風險率計算方法，以白石水庫為背景，研究「考慮壩體自身安全、考慮壩體安全與下游防護對象控制下泄流量的汛限水位動態控制的極限風險率」 。
  2. When catchment area, average channel gradient and catchment shape factor of designed culvert or bridge are known, a user can be convenient to get local parameters c, e and b from standard contour charts and easy to calculate flood flow just by a calculator. design period of flood flow is enormously shortened as well as a high precision. estimated flood flow through culvert or small bridge by new calculation model is generally less than by traditional methods, so that much cost is cut down a s reducing the span of culvert or small bridge

    以75000km ~ 2的川中丘陵地區為試點研究區，繪制了該地區新模型的參數等值線圖，率定了不同設計頻率的改正系數，使設計者只需在地形圖上獲取集水面積，河道平均坡降和流域形狀系數，在參數等值線圖上查得橋涵所在地的相應參數，使用計算器即可迅速計算出設計流量，大大縮短了設計周期，且精度較高，設計的洪水流量一般低於傳統方法，從而可減小橋涵跨徑，節省投資。
  3. With this system, we set up a water quality model, and calibrated the model

    本文建立了流域水質模型，並在水量模型率定的基礎上進行了水質模型的率定。
  4. By analyzing risk sources and those uncertain factors affecting the risk, the diversion risk is defined as the probability of the maximum discharge after being adjusted and held higher than the maximum design flood

    通過對導流風險來源和引起導流風險的各種不確定性因素的論述和分析，把施工導流風險定義為天然來（洪）水經過調蓄后，導流泄水建築物的最大泄水流量超過其設計最大泄水能力的概率。
  5. The calibration result is in accord with the actual measurement, with a relative error low than 30 %

    率定結果與實測數據吻合較好，相對誤差多在30 %之內，一定程度上反映了太湖流域的水質概況。
  6. According the key factors we find, we bring forward a new conception : multilevel suppressor and design a new high performance suppressor whose ion - exchange membrane has bigger areas and using three electrodes including one cathode ( anode ) and two anodes ( cathode ), at the same time we fill the suppression compartment with one kind of ion exchange resin which has moderate exchange capacity. according to our experiment ' s results, we find the new type suppressor has quite high working current efficiency and suppressing capacity. in most cases, the suppressor ' s current efficiency is over 90 % ; the suppressor can transform the naoh ( concentration : 200mmol / l, flow rate : i. oml / min, conductance : over 10000 i - i s cm " ) to pure water ( conductance : 8. 9 it s cm in chapter 3, the high performance suppressor is applied in determination some trace - amounts ions in plating solution, sewage. in this chapter, we also have a research on the gradient ion chromatography

    第二章首先以xyz - 1型電化學抑制柱為例，分析了電化學抑制柱的抑制過程得出影響抑制容量的主要因素主要是抑制柱的電流效率和離子交換膜的極限電流密度，因此採用中等交換能力的離子交換樹脂作為抑制室的填料以提高電流效率，在通常情況下電流效率可達到90以上；在選用同種離子交換膜的前提下，可通過增加離子交換膜的有效面積達到提高極限電流的目的從而提高抑制柱的抑制容量，因此提出了多級抑制的概念並據此研製了共電極式高容量電化學抑制柱，該抑制柱最高可將流速為1 . 0ml / min ，濃度為200mmol / l電導率超過10000 s ? cm ~ （ - 1 ）氫氧化鈉溶液抑制為電導率低至8 . 9 s ? cm ~ （ - 1 ）的純水，並且具有穩定性高、分析結果準確等優點。
  7. Efficiency of permeable pile dike is closely related to water - sand ratio in upstream flow, direction of the coming flow and seepage rate. this paper investigates mechanism and effect of flow control and aggradation using hydraulic modeling and theoretical analysis. it is shown that suitable seepage rate can help aggradation and suitable coming flow direction can help to govern the flow trend

    研究結果顯示，來流和來沙一定的條件下，透水率在適當的范圍內有利於壩后緩流落淤，入流角在一定范圍內對控導河勢有明顯作用，不同方案組合所對應的緩流落淤效果和控導河勢作用具有一定的差異性。
  8. To develop venture capital, firstly need to scientifically appraise its value. on the contrary, traditional dcf will not only meet insurmountable difficulties, but also ignore the value of operation flexibility in venture capital enterprises, which assumes venture investor who makes decisions only could take rigid tactics

    發展創業企業首先需要對創業企業價值進行科學評估，而傳統的折現現金流量法不但在確定風險調整貼水率時會遇到難以克服的困難，而且這種方法忽視了創業投資企業中可能包含的經營靈活性的價值，假定創業投資家在進行投資決策時只能採取剛性的策略。
  9. While speaking highly of railway ' s achievement since the 16th cpc national congress, chairman jia noted that the chinese people have built the world ' s top - notch qtr line while relying on our own strength, and chinese railway people have developed and manufactured 200km / h and 300km / h emu trains and high horse - power locomotives through introduction, digestion, absorption and re - innovation, thus making a major contribution to the building of an innovation - oriented country

    他對黨的十六大以來鐵路工作取得的成績給予充分肯定，指出，中國人依靠自己的力量，建設了具有世界一流水平的青藏鐵路；通過引進消化吸收再創新，設計製造了達到世界先進水平的時速200公里、 300公里動車組和大功率機車，中國鐵路為建設創新型國家作出了巨大貢獻。
  10. Using existing data and experiences, considering the character of shaying river, and based on the water quality forecast system of shaying river, in this paper, we firstly put forward a high performance parallel computing method of multi - parameter choice in china, and implement it on dawing high performance parallel computer for the choice of parameter for shaying river

    文章利用已有的數據和經驗，根據沙潁河具體的水質和應用特點，在國內首次提出了採用基於并行計算技術的高性能計算方法，對沙潁河支流水質模型進行多參數率定的方案，並在曙光系列并行機上得以實現。
  11. Aimed at the feature of great fluctuation of water flow - rate in rivers and taking the monthly average flow - rate at low water with 90 % guaranty in recent ten years as design flow - rate, the permissible amount of major pollutants discharged into yellow river by lanzhou namely the stochastic environment capacity of waters, was determined by using a stochastic computation mode on the basis of lognormal distribution theory

    摘要針對河水流量變化大這一特點，採用以對數正態分佈理論為指導的隨機計算模式，以近十年90 %保證率最枯月平均流量為設計流量，確定黃河蘭州段主要污染物的容許排污量，即隨機水環境容量。
  12. During the design of vxi - bus serial controller module, the functions of vxi - bus including time - sequence for vxi interface, resource management, interrupt process, bus arbitration, are accomplished. to advance the performance and stability, the fpga technic is used to implement the kerneled code including serial bus time - sequence switching to vxi interface time - sequence, the uart, the parameterized baud generator and “ pipeling frame ”. the handle type of data transfer bus for vxi - bus is researched thoroughly, and the format of serial data transfer is designed

    在vxi總線串列控制器設計中，實現了vxi總線控制器的基本功能，包括vxi總線介面時序、總線仲裁、超時處理等;同時利用先進的fpga技術實現了串列總線時序向vxi總線時序的轉換、通用異步收發器（ uart ） 、參數化波特率發生器、流水線結構等功能模塊;在設計中還深入研究了vxi總線數據傳輸的各種操作類型，制定了串列數據傳輸的編碼格式。
  13. Taking ningxia - inner mongolia reach of yellow river as a study case, a ice regime forecast data warehouse is established for the datamining concerned on the basis of the analysis on the ice regime changing law and its influencing factor of the reach, and then the conceptual mathematic model and artificial neural network model for the parameter calibration of ice regime forecast are built up with gis in combination of the relevant empirical forecast models based on the principles of the hydrological flow muting, thermodynamics and ice hydraulics etc., with which the design and development of the decision support system for the ice regime forecast with the integrated functions of information inquiry, model parameter calibration, temperature forecast and ice regime forecast are preliminarily discussed

    摘要以黃河寧蒙河段為例，在對河段歷史冰情變化規律及其影響因素分析的基礎上，建立冰情預報數據庫，進行數據挖掘，並以地理信息系統（ gis ）為平臺，以水文學流量演算、熱力學、冰水力學等原理為基礎，結合相關經驗預報模型，建立用實測資料進行參數率定的冰情預報概念性數學模型和人工神經網路模型，初步探討了集信息查詢、模型參數率定、氣溫預報、冰情預報等功能為一體的冰情預報決策支持系統的設計與開發。
  14. Abstract : the effective shear stress of sediment transport is analyzed theoretically and tested by experimental data. the result shows that the effective shear stress is neither the overall shear stress nor the sand grain shear stress, but the geometric mean of these two stresses. the effective shear stress not only generalizes the flow intensity but also summarizes the flow intensities of mean flow velocity, stream power and unit stream power

    文摘:本文通過理論分析及實測資料檢驗表明，無論對於何種泥沙運動狀態，決定泥沙運動的有效切應力既不是沙粒切應力又不是全部切應力，而是介於兩者之間，近似為沙粒切應力與全部切應力的幾何平均值.這一有效切應力不但是對切應力類水流強度指標的總結，還可以概括平均流速和水流功率等水流強度指標
  15. General speaking, the large number of signal types to be digitalized has led to a diverse selection of data converters in term of architectures used, bits of resolution achieved and sampling rate employed

    一般而言，大量需要數字化的信號要求有各種不同結構、不同解析度、不同采樣率的a d數據轉換器來實現。在比較了各種模數轉換器的結構和優缺點之後，本項目決定採用流水線式（ pipelined ）的電壓型結構。
  16. The assembly line is under computers automatic control and inspection, of which both the technology and equipment have reached the international advanced level. in the year of 2005, changhai has once more introduced the international advanced product line for fiberglass tissue mat, promoting the technology strength and the production at a large step. equipped with 60 professional technicians, an advanced lab and research development center, the company bears strong abilities of developing new products ; guaranteed with such solid technology strength, changhai is able to produce specific chopped strand mats of 100g, 120g for the inner roofs of automobiles as well as various glass fiber mats and to produce products of special specifications according to customers order

    目前，長海擁有大型生產線10餘條，其他配套設備50多臺套，公司擁有先進的薄氈短切氈生產線，蓄電池隔板生產線，玻纖方格布網格布織機復合氈織機，針織氈設備，以及各種塗塑分切設備等，流水線生產採用全自動電腦控制和監控，技術力量與設備都達到國際化先進水平2005年，長海再次引進國際先進的玻纖薄氈生產線，企業技術實力與產量再次得到大規模的提升公司有著極強的產品研發能力，擁有專業技術人員近60餘名和先進的實驗室與研發中心雄厚的技術實力保證，使長海公司在國內率先能生產100克120克汽車內頂用特殊短切氈，玻纖各種薄氈，並能為用戶定製生產特殊規格的玻纖製品。
  17. It is assumed that model parameters calibrated from measured precipitation - runoff data in a specific period, reflect the situation of land surface and the human activity in that period. firstly, daily data of precipitation, pan evaporation, and discharge in 1960 ' s are used to calibrate the parameters of the xin ' anjiang model. then the parameters calibrated are applied to the computation of daily discharge from 1950 ' s through 1990 ' s, in which daily measured data of precipitation and pan evaporation are taken as the input of the xin ' anjiang model

    這種徑流過程代表下墊面和人類活動水準不變情況下氣候波動對徑流的影響，然後利用計算的長系列徑流過程與實測徑流過程對照，其差別反映下墊面的自然變化過程是十分緩慢的，可以忽略，因此這種差別主要代表了人類活動的影響，從前後期率定水文模型所得參數的差別及參數所代表的物理意義來分析下墊面及人類活動的變化，從而將氣候波動和人類活動對地表水資源影響程度定量分解出來。
  18. 2. on the basis of analyzing experimental data for slope land of loess plateau in different slope gradient and rain intensity and soil and water conservation tillage measures, using curve - fitting techniques, a soil infiltration rates model was woke out, the accuracy of the model is tested by a series of experiment data, the result of these indicate that the soil infiltration rates model is accurate and has good stability for slope land of loess plateau. 3. using soil infiltration rates and runoff time and wetting frontal surface depth of soil infiltration reflect effect of factor affecting soil infiltration rates

    （ 3 ）採用土壤穩定入滲速率、坡面開始產流時間、土壤濕潤鋒面下滲深度三個指標來反映坡耕地土壤入滲影響（土壤性質、土壤初始含水率、地面坡度、降雨強度、積水深度、水土保持耕作措施等）因素效用大小，建立了各因素與三個指標的關系模型，詳細分析了不同水土保持耕作措施強化土壤入滲的影響，其中等高耕作作用最為顯著，其次是人工掏挖和人工鋤耕。
  19. Meanwhile, river network analysis tools ( rivertools ) and geographic information system software ( arcview ) are used to display subcatchments and river network extracted from dem data. on the platform of the digital basin built above, the xin ' anjiang model is selected for runoff simulation during the different periods

    在構建數字流域的基礎上運用新安江模型模擬徑流量的方法，對不同時期的實測水文資料進行率定，率定后的模型反應了相應的下墊面及人類活動狀況，利用率定了的模型和實測長系列降水、蒸發資料，模擬計算流量過程。
  20. The results show that multi - lever and multi - strand horizontal submerged jets are a new energy dissipation type and have better stability of flow patter, lower velocity in the slab and higher dissipated energy rate than the single - lever and the multi - strand horizontal submerged jets

    研究表明，多股多層水平淹沒射流較單層多股水平淹沒射流流態穩定性好、臨底流速低、消能率高，是一種高效的新型消能方式。
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