泄流 的英文怎麼說

中文拼音 [xièliú]
泄流 英文
aerial drainage
  • 泄 : Ⅰ動詞1 （液體、氣體排出） let out; discharge; release 2 （泄露） let out （a secret）; leak （new...
  • 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...
  1. Study on discharge capacity of labyrinth weir

    迷宮堰泄流能力及水力特性的試驗研究
  2. 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」 。
  3. The optimization of laying out these structures, paths of flow jets and a water cushion pool for a high arch dam is first discussed systematically in this paper

    本文首次系統地對高拱壩壩身泄洪孔口、泄流過程以及壩下水墊塘的布置優化問題進行了討論。主要內容和成果有1
  4. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  5. The main work is done with the help of model experiment. in the flood - relief experiment, the flood carrying capacity of spillway tunnel is checked. in the hydraulic experiment of the diversion power conduit system, the followings are studied : the flow condition and fluctuation in the surge chamber, the distribution of flow velocity before the rack in the surge shaft, the amplitude of stage in the quick gate bay etc. the test step, content and results of different proposals are introduced in details

    本項優化試驗研究的目的主要在於，通過泄洪系統整體水力學試驗，校核泄洪洞的泄流能力；通過發電引水系統整體水力學試驗，研究調壓井內水流流態和水位波動情況、調壓井內攔污柵前流速分佈情況；確定快速閘門井內水位波動幅度；試驗確定壓力管道水擊壓力穿井系數以及泄洪洞弧形門處的水壓力。
  6. For the low water head water control project at a branching channel, its flood discharge capacity is related not only with the total discharge width but also with the discharge width ratio of the two branches

    摘要位於分汊河段的低水頭樞紐，其泄洪能力不僅與樞紐的總泄流寬度有關，而且與兩汊泄流寬度之比有關。
  7. The researches including discharge capacity, pressare properties, cavitation characteristics at some key positions, hoisting load of the gate, configuration of energy dissipator at the exit dentated - sill, and downstream scouring were performed by hydraulic model tests

    藉助系列水工模型試驗對水布埡放空洞的泄流能力、壓力特性及關鍵部位的空化特性、閘門啟閉力、出口鼻坎消能工體型及下游沖刷等進行了較深入的研究、分析。
  8. The inner - plant economical operation of lijiaxia hydropower station is studied based on the disadvantageous operating mode area of the units determined by school of civil engineering of tianjin university and the actual operating experience of the lijiaxia hydropower station in the last a few years

    摘要以天津大學建築工程學院確定的李家峽水電站機組的不利工況區為依據，以近幾年來該水電站的實際運行經驗為參考，在綜合考慮機組初始運行狀態、機組振動特性、機組出力、下泄流量、水庫蓄水量和電網負荷平衡等因素的基礎上對李家峽水電站的廠內經濟運行進行了研究。
  9. The paper discusses the methods of multi - objective ecological operation of reservoirs, which covers the establishment of legislation systems ; water demands for the basic ecological functions of downstream river channel ; reservoir discharge patterns simulating natural hydrological regimes ; regulation and control of sedimentation and eutrophication of reservoirs ; mitigation of the influences by water temperature stratification ; the operation techniques in pollution prevention and connectivity reinforcement of water systems

    文中討論了水庫多目標生態調度的方法，包括建立相應法規體系；保證維持下遊河道基本生態功能的需水量；模擬自然水文情勢的水庫泄流方式；進行水庫泥沙調控及水庫富營養化控制；減輕水體溫度分層影響；進行防污調度以及增強水系連通性等方面的調度技術。
  10. Discharge calculation and experimental for plain sluice

    平原水閘泄流能力計算與試驗
  11. Abstract : using a series of model tests, the properties of discharge capacity in the closed conduit due to inflow in gate shaft is studied and a method for estimating reducing discharge capacity is provided to designers

    文摘:通過系統模型試驗，研究了泄水道因進口閘門井進水減小泄流能力的特性，並提出了估算方法，可供設計應用。
  12. Analyses show that, when the ratio of the two branches ' discharge widths is coordinated with the resistance ratio of the two branches, the project reach has the least resistance, that the discharge capacity is the largest and that its influence on the project reach is less after the finishing of the project

    通過分析，當兩汊泄流寬度之比與汊道兩汊阻力比相協調時，樞紐河段的阻力最小，其泄洪能力達最大，且樞紐建成后對樞紐河段的影響也較小。
  13. The huge runoff in the flood season had badly endangered the lives and fortunes of over 2000 million residents in downstream region of huaihe river

    淮河下游洪水出路歷來不足，在洪水季節，下泄流量激增，嚴重危及淮河下游地區2000多萬人民的生命和財產安全。
  14. It is shown that : with the enhancement of er effects, the pressure and the thickness of lubricant film are obviously increased, while the friction coefficient and force are increased, the leak flow is reduced

    計算結果表明：隨著電流變效應的增強，油膜壓力和油膜厚度都有明顯提高，但是摩擦系數和摩擦力有所增加，端泄流量有所減小。
  15. Then by the mathematics models parameters of quasiliquid machines are studied and orifice and spring force and off axis force mostly effects the distance of safety and arming

    據此數學模型對引信準流體機構進行參數分析。影響引信準流體延期解除保險距離主要因素是泄流孔徑、彈簧推力、離心力。
  16. The trajectory bucket is improved and optimized for suitable trajectory distance and small scouring

    泄洪洞挑流坎挑流消能時，當泄流量較小時，挑距較短。
  17. The department took part in the study on the renovation of sanmenxia reservoir, this picture shows sediment sluice from the reservoir

    圖為三門峽水庫樞紐正在泄流排沙，泥沙所參加了三門峽水庫改建工程的科研工作。
  18. The result show that the position of free surface is higher because of frusta of brake, especial obvious in the head of frusta of brake ; flux coefficient and pressure on dam are quite influenced by type of frusta and 3 a type frusta of brake relative to 2 type frusta of brake has bigger flux coefficient and smaller pressure on dam ; obvious influence of ability of discharge flow for different ratio of thickness of frusta and breadth of brake and pressure on dam reduces with increasing ration of thickness of frusta and breadth of brake, while bigger flux coefficient is obtained when tlb = 0. 2

    結果表明，閘墩河海大學博士論文的存在抬高了水面線的位置，其中在閘墩頭部尤其明顯;墩型對流量系數和壩面壓力影響較大， 3a型閘墩相對於2型閘墩具有更大的流量系數和更小的壩面壓力:不同的墩厚閘寬比t / b對泄流能力也將產生顯著的影響，隨著墩厚閘寬比的增加，壩面壓力降低，而當t / b二0 . 2時溢流壩具有更大的流量系數。
  19. Jahezi reservoir is located at the northwest arid area of china, the primary tasks of which are flood control land irrigation. it has been reinforced in 2003 so the discharge capacity and the safety of dam were increasing at large degree, which created the conditions to utilize the flood sufficiently by raising the limited water level

    夾河子水庫地處我國西北乾旱區，主要承擔防洪及灌溉任務， 2003年除險加固完成後，水庫的泄流能力及大壩安全都有很大程度的提高，為水庫抬高汛限水位，實現洪水資源化創造了條件。
  20. Further tests show that this scheme is satisfactory in both flow pattern and discharge capacity

    進一步的試驗證明了該方案無論在流態上還是在泄流能力方面都達到了令人滿意的效果。
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