坡降流 的英文怎麼說

中文拼音 [pōjiàngliú]
坡降流 英文
gradient currents
  • 坡 : Ⅰ名詞（地面傾斜的地方） slope Ⅱ形容詞（傾斜） sloping; slanting
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 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. Besides, the upward motion on the aweather slope of main mountains of zhoushan archipelago can induce more precipitation and orographic highs

    另外，氣流爬越島嶼的主要山脈時的上升運動，會導致迎風坡的降水增多，並誘生中小尺度的地形高壓。
  2. Based on studying of the unequal rainfall in space - time and the asymmetry physical geography parameters in space, which can influence the process of the runoff, this paper puts forward a sort of slope conflux and watercourse conflux simulating model based on grid, and that gains flux at random time and grid in basin

    本模型針對降雨時空分佈不均勻與下墊面自然地理參數空間分佈不均勻，對產匯流形成過程的影響，提出了一種基於柵格的坡面產匯流與河道匯流的數值模擬模型。
  3. To use the athwart gradient protection which takes the end of dam as the datum mark will reduce the digging depth of the stilling basins is reducing, and increase the energy dissipation rate

    採用以壩體末端為基準面的壩體逆坡防護時，消力池挖深減小，消能率提高，壩面平均流速減小，壩區防護難度降低。
  4. Soil is the base of agriculture production, the key measure to prevent water and soil loss is to conserve soil, but most soil nutrient is lost with the sediment loss, and serious water and soil loss make the soil thickness degrease, the soil nutrient be deficient and lean, the land quality degrade and the yield of plant decrease, all this results is going to threaten the people ' s transplanting and the agriculture sustainable development, and restrict the economy development of three gorges regions

    同時，土壤是農業生產的根本，治理水土流失的關鍵是要保住土壤，而土壤養分絕大部分是隨著泥沙流失的，嚴重的水土流失造成土層淺簿、養分貧瘠，土地質量退化，產量下降，對三峽庫區移民工作和農業可持續發展造成嚴重威脅，制約三峽庫區經濟發展。因此進行三峽庫區坡耕地土壤侵蝕機理研究，探索減輕坡耕地土壤流失的方法措施，具有全局性的重大意義。
  5. The results of soil trough experiment indicated that, the flow velocity and froude number would add when the rainfall splash intensity rose ; the flow depth and resistance coefficient would decrease when the rainfall splash intensity increased

    土槽試驗結果表明：土壤坡面薄層水流流速和弗汝德數隨雨滴打擊強度的增加而增加，水深、阻力系數隨雨滴打擊強度的增加而降低。
  6. The study area is composed of sandstone & conglomerate reservoir of alluvial fan & fan delta, which belong to sha3 lower member and sha4 upper member of lower tertiary of yong " an town oilfield in dongying depression. the target stataum develops in the hanging wall of the synsedimentary fault in the scarp zone of dongying depression. the frequently intense movements result in the variation of sandstone and conglomerate reservoir and the evolution of the time and space of sha3 lower member and sha4 upper member in yong " an town oilfield

    研究區是東營凹陷永安鎮油田沙三下段、沙四上段的沖積扇和扇三角洲砂礫巖體，目的層發育在東營凹陷陡坡帶同生斷層的下降盤，因斷層多期強烈活動，導致永安鎮油田沙三下段、沙四上段的砂礫巖體成因類型多，時空演化變化大，在扇根一帶小層對比難度大，給油田開發帶來很大的難題，在這種背景下進行流動單元研究難度更大。
  7. Besides, the sedimentary facies of upper ganchaigou and lower ganchaigou formation were also mapped in supersequences which are the main target strata for exploration. the high resolution sequence stratigraphic framework showed the genetic relationship between the distributions of sedimentary facies and their tectonic settings. the near - source sedimentary systems such as subaqueous alluvial fan and lake - floor fan are often deposed in rise - hemicycles in the steep slope background in the north, the coarse lithology of fan - delta prograded from north to south in fall - hemicycles, and the braided stream facies are formed in the rise - hemicycles in gentle slope background in the south, braided stream facies prograded from sorth to north in the fall - hemicycles, but the lacustrine facies and salt lake facies developed in the middle part of the area

    詳細的沉積相研究發現，紅獅地區第三系發育有沖積扇、水下沖積扇、河流、三角洲、扇三角洲、湖泊和湖底扇7種主要沉積相類型，並對作為區內主要勘探目的層系的下乾柴溝組和上乾柴溝組進行了以超層序為單位的沉積相平面編圖，以較高的時間解析度揭示了區內沉積相帶的平面展布及其在不同構造背景中的分佈規律，比如在北部的凹陷陡坡背景下，上升半旋迴低水位期通常發育有水下扇、湖底扇等陡岸近源特徵的沉積體系，下降半旋迴高水位期，扇三角洲相粗碎屑巖由北向南進積;在南部的凹陷緩坡背景下，上升半旋迴主要發育辮狀河流相，下降半旋迴辮狀河三角洲相由南向北進積;而中部紅柳泉一獅子溝一帶則為湖泊相沉積和鹽類沉積。
  8. On the formation mechanism, the rills were mainly formed by the concentrated action of the runoff on dyke slope, while the formation of socket mainly depended on surface runoff, subsurface flow and the existing defects within the dykes such as crack, mouse hole, fox and brocks dens

    在成因上，前者主要是降雨形成超滲地面徑流的集中對戧坡的侵蝕作用而形成；後者主要與坡面徑流、壤中流，以及土堤的薄弱點（如裂縫、鼠洞、狐1一灌洞等）有關。
  9. Their biggest concerns are preventing seepage under or through the embankment, stabilizing the slopes, and overbuilding to counteract settling, which can be up to 5 percent for soils compacted during construction and 15 percent for uncompacted material

    工程師最注意的幾點包括防止堤防底部或內部出現滲流、穩定邊坡，以及超量建造以防止沉降，也就是在建造時增加5 %壓實土壤和15 %未壓實物料。
  10. As a practical application, the safety situation of jiujiang dike under the 1998 pluvial condition of once a hundred years in yangtze river has been evaluated by the reliability method from the point view of the seepage stability in terms of probability analysis and two dimensional saturated seepage finite element analysis combining with the mechanism of seepage burst in jiujiang dike summarized in the thesis

    通過滲流有限元和滲流可靠性分析論證了1998長江流域特大洪水災害中九江市防護大堤發生的嚴重潰口破壞的滲流破壞機理。分析、比較得出結論：堤防下游坡腳的出逸比降接近和超過臨界比降，在1998年長江百年一遇的洪水條件下九江大堤潰口斷面的抗滲可靠性僅在55左右的非常低水平。
  11. 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。
  12. It is concluded : the determination of the center spacing may be conducted under the permissible elevation of the exit line of seepage surface on slope surface downstream. in the end, the author has analysed the seepage field what the holes are placed two rows along the slope height

    另外，在對比多種孔距的方案分析結果的基礎上，得出結論：排水孔孔距變化對邊坡滲流場沿邊坡走向方向水頭分佈影響明顯，布設排水孔應根據目標降深確定排水孔孔距。
  13. 3. the study on the parameters that affect the seepage field of unsaturated slopes based on the existent program of 3 - d saturated - unsaturated seepage, mainly including ( 1 ) the combination of different rainfall intensity, duration, and type ; ( 2 ) the essence of medium, e. g

    利用已有的三維飽和-非飽和滲流程序對在降雨條件下影響非飽和邊坡滲流場的參數進行研究，主要包括： （ 1 ）不同降雨強度、降雨歷時、雨型等降雨類型組合； （ 2
  14. The reason for the failure of loosely residual soil slopes triggered by rainfall is that the contractive failure caused by the penetration of rainfall, giving rise to a high excess pore pressure which reduces shear strength of the soil. the soil is prone to flow slide after failure under the action of gravity due to its high moistu re content

    蔣家溝地區坡殘積土斜坡在暴雨條件下的破壞是由於降雨入滲導致土體發生剪縮破壞，破壞後土體的孔隙水壓力升高形成超孔隙水壓力、土體強度降低、破壞迅速擴展所致，因而大多數斜坡呈流滑型破壞並具有突然性破壞特點。
  15. A preliminary study of rainfall infiltration on slope using a new coupled surface and subsurface flow model

    考慮地表徑流與地下滲流耦合的斜坡降雨入滲研究
  16. The results of monitoring, from june to august in 2001, showed that the average concentration of nitrogen and phosphorus in runoff varied strongly, the loss concentrations in the cultivated lands such as sweet potato land and orchard land were higher than those in uncultivated lands such as grassland and woodland

    降雨徑流中總氮、總磷平均濃度變異較大，總體說來，紅薯地和園地等有人工耕種的坡地氮、磷流失濃度最大，草地和林地等受人工影響干擾少的坡地流失濃度相對較少，高坡度林地流失濃度大於緩坡林地。
  17. On the basis of consulting a large number of literatures domestic and aboard, the present situation and latest development of hydrodynamic characteristics of overland flow and slope erosion dynamic process were reviewed. aiming at revealing the effect of rainfall splash intensity on hydrodynamic features of sheet flow and slope erosion, with a combination of runoff experiment and simulated rainfall experiment with a fixed intensity, applying hydrodynamic and erosive theory, the effect of rainfall on overland flow velocity and the influence of rainfall splash intensity on hydrodynamic features ( such as velocity, flow depth, flow patterns, resistance ) of sheet flow on slope and the influence of rainfall splash intensity on the overland flow sediment contain was researched

    本文在查閱了大量國內外文獻資料，全面了解了坡面流水動力學特性及坡面侵蝕動力過程等方面的研究現狀及最新進展的基礎上，以揭示雨滴打擊動能對坡面薄層水流水動力學特性及坡面侵蝕的影響為目標，採用水槽放水試驗和定雨強模擬試驗相結合的方法，運用水動力學與侵蝕理論，研究了降雨對坡面薄層水流流速的影響，雨滴打擊強度對坡面薄層水流流速、水深、流態、阻力等水動力學參數的影響，雨滴擊濺作用對坡面流泥沙含量的影響。
  18. During the rainfall experiment with a flow discharge, the influencing degree of rainfall splash intensity on the overland flow sediment contain had something to do with the runoff discharge above

    在放水加降雨試驗中，雨滴打擊強度對坡面流泥沙含西安理工大學碩士學位論文量的影響與放水流量大小有關。
  19. In addition, this paper selects the water traveling wave model of the surface irrigation, and realizes the modeling of the water movement, according to the water movement characteristics of surface irrigation. furthermore, the optimization model for irrigation effects is used to produce the calculation pattern in which the water movement model is combined with optimization of technical parameters of irrigation. therefore, it is realized that the optimum unit discharge is calc ulated under the condition of definite length and slope of border check and the optimum length of border check is calculated under the condition of definite unit discharge and slope

    與此同時，在分析項目區耕作條件下灌溉水流運動特點的基礎上，選擇地面灌溉水流運動波模型，實現了地面灌溉水流運動的數值模擬，並利用灌溉效果優化模型，構造了地面灌溉水流運動模擬與灌水技術參數優化相結合的計算模式，實現了定畦長、定坡降條件下的優化單寬流量求解和定單寬流量、定坡降條件下優化畦長的求解，為變灌水條件下優化灌水技術參數的確定提供了強有力的工具。
  20. ( 3 ) the results of soil trough experiment and simulated rainfall experiment with a fixed intensity indicated that, the rainfall splash intensity had a remarkable effect on the overland flow sediment contain. during the single rainfall experiment, when the rainfall splash height was less than 5 meters, the overland flow sediment contain would add with the lower rainfall splash height increased ; when the rainfall splash height was more than 5 meters, it would drop with the higher rainfall splash height increased

    （ 3 ）土槽試驗和定雨強模擬降雨試驗結果表明，雨滴打擊強度對坡面坡面流泥沙含量有顯著影響。單降雨實驗中，當降雨高度小於5m時，無論雨強大小，坡面流泥沙含量隨雨滴打擊強度的增加而增加；當降雨高度大於5m時，坡面流泥沙含量隨雨滴打擊強度的增加而降低。
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