泥沙作用 的英文怎麼說

中文拼音 [níshāzuòyòng]
泥沙作用 英文
sediment utilization
  • 泥 : 泥名詞1 （含水的半固體狀的土） mud; mire 2 （像泥的東西） any paste like matter; mashed vegetable...
  • 沙 : 沙動詞[方言] （搖動以清除雜物） shake
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 泥沙 : [地] silt; sediment
  1. Based on the study of sediment transport under the actions of tidal currents and wind waves, a mathematical model of suspended load and bed load for yangtze estuary is developed

    摘要通過對長江口徑流、潮流和波浪共同作用下的泥沙運動規律的研究，開發並建立了長江口全沙（懸沙和底沙）數學模型。
  2. Density currents generated by saline and fresh water interactions are also important in the transport of sediment in estuaries.

    由鹽水和淡水相互作用所產生的異重流，在河口泥沙輸移中也是很重要的。
  3. By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent

    最後，本文還對絮凝動力學和絮體結構進行了研究，在前人研究的基礎上，針對高分子絮凝黃河泥沙，對絮凝過程作了一些符合試驗條件的假設，建立了顆粒碰撞頻率表達式，應用了顆粒數量平衡方程，從而建立了絮凝過程的動力學生長模型，模型計算結果與試驗數據對比表明，二者趨勢一致，在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程；對絮體結構的研究中，應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察，將絮體分為絮粒、絮團和絮網三個不同的生長階段，通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體，建立了絮體結構模型，計算得到的模型絮體分形維數基本與試驗中的實際絮體相符，在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。
  4. We find that the petrology characteristic of all the samples have no characteristic of meteoric water such as geopetal structure, infiltrative sand, ( uniform cement and gravitational cement on base of the research of the dolomite in the regions. on the dot diagram of combination of mgco3 ( mol % ) and sr, the dot are all close to the line of seawater whether they are microlite - crystalline penecontemporaneous dolostone or diagenetic dolostone of various crystals. the 87sr / 86sr value of dolostone or matrix is less than the one of sparry calcite in cave or vein, and close to the value of seawater

    通過本區白雲巖的研究發現：已有的白雲巖樣品的巖石學特徵沒有顯示出如示底構造、滲濾沙、新月型膠結物和重力膠結物等大氣淡水作用的特徵；在白雲石mgco _ 3mol百分數和白雲石sr含量的投點圖中，無論是準同生成因的泥?微晶白雲巖，還是粉?細晶（或中晶，或細晶以上的不等晶）的成巖白雲巖，均投在海水線的附近；白雲巖（或基質）的~ （ 87 ） sr / ~ （ 86 ） sr比值顯著低於與孔洞或脈中充填的亮晶方解石，且與海水值十分接近， ~ （ 13 ） c和~ （ 18 ） o值顯著高於孔洞或脈中充填的亮晶方解石，也偏向于海水值； mn含量則顯著低於孔洞或脈中充填的亮晶方解石。
  5. Bedload is the main factor resulting in bed form for few sands of suspend load in the river bed

    河床質中幾乎沒有懸移質顆粒，對河床演變起主要作用的是推移質泥沙。
  6. So as the enter point of the stream, the income of the reservoir, the time of the flood peak lasted, the quantity of sandiness income and the strobe of the darn. we must do some work to forecast and watch the different density stream. by experiments, we made out that it is impo rtant for us to reduce the water lever in work of the river belongs lots of sandiness

    從異重流試驗看，在正常運用下，水庫產生泥沙異重流的機率較大，能否運動到壩前排出庫外，還要看異重流潛入點位置、入庫流量、洪峰歷時、入庫含沙量、水庫閘門運用等因素，需要做好異重流預報監測工作。
  7. On the base of summarizing and evaluating chinese soil erosion models, this paper brings forward future developing directions that the soil erosion models should pay attention to : ( 1 ) paying attention to the theory researches of soil erosion models, consummating from erosion factors basis erosion prediction to erosion processes quantity and theory researches, studying each erosion factor and its interaction impact on erosion processes, and sediment dispersion, transportation and deposition action on complex slopeland, as well as different catchments scales ; ( 2 ) reinforcing the study of gravitation erosion and cave erosion mechanism, and big and middle scale catchments erosion models ; and ( 3 ) making the best of advanced rs and gis technology, providing plentiful datum for erosion models researches, making and for soil erosion models checkout

    在總結和評價中國土壤侵蝕模型的基礎上，提出了今後土壤侵蝕模型應該注重的發展方向： （ 1 ）注重土壤侵蝕模型的理論研究，將從以侵蝕因子為基礎的侵蝕預報向侵蝕過程的量化研究和理論完善，研究各侵蝕因子及其交互作用對侵蝕過程的影響，泥沙在復雜坡面以及不同流域尺度間的分散、輸移和沉積作用； （ 2 ）加強對重力侵蝕、洞穴侵蝕機制的研究，加強對大中流域侵蝕模型的研究； （ 3 ）充分利用先進的rs 、 gis技術，為侵蝕模型的研究提供大量的數據源，以利於對土壤侵蝕模型的檢驗。
  8. It is mainly by analyzing the features of sediment concentration distribution in vertical in this paper, and then the problems of effect of headwork gates on sediment prevention, relation between distribution of sediment deposition in irrigated areas and its treatment and utilization, estimating the influence of withdrawing water and sediment on channel deposition and erosion in lower yellow river, and treatment and utilization of the sediment entered into canals are discussed

    本文主要從分析計算含沙量沿垂線分佈特點，探討渠首防沙的作用，分析灌區泥沙淤積分佈特性與泥沙處理利用的關系，分析計算引水引沙對黃河下遊河道沖淤影響及入渠泥沙的處理利用等問題。
  9. In light of current using situation and drawing on the experience of many scholars researched methods and viewpoints, this thesis made com land, fallow land, orchard, grass land as experimental field in black soil region jlau, which carried out experiment by applying different amounts of n and p fertilization in corn field. by means of collecting the samples of rainfall runoff, erosion silt and surface layer soil before and after rainfall for one year nature precipitation in field, we study the effect of surface runoff on n and p nutrient and fertility degeneration. the results showed : ( l ) there are lots of factors which affect soil erosion and losses of n and p, in which rainfall and rainfall intensity were more important, while rainfall intensity is the most important meteorological phenomena factor

    針對當前黑土利用現狀，本文借鑒眾多學者的研究方法和觀點，在吉林農大黑土區選擇利用方式不同的玉米地、休閑地、果園、草地，在玉米區進行了不同數量的施肥，通過野外試驗，採集一年自然降雨產流及泥沙樣品，同時採集降雨前後的耕層土壤樣品，研究了黑土區地表徑流對氮磷養分特徵及肥力退化的影響，結果表明：土壤侵蝕和氮磷的流失受諸多因素的影響，降雨量、降雨強度是重要因子，而降雨強度是影響農田地表徑流養分流失的最重要的氣象因子，特別是暴雨，暴雨徑流中氮磷濃度較平時高得多；隨作物生長，覆蓋度逐漸增加以及不同利用方式下表現的覆蓋度差異，氮磷流失都表現為顯著的差異。
  10. Nutrient content in surface runoff and sediment was highest in the beginning of surface runoff, and then became stable

    （ 2 ）撂荒荒坡、林草間作和造林林地沉澱泥沙中的全氮、全磷、全鉀和有機質含量高於其它3種利用方式。
  11. Sediment in the lower yellow river irrigation is mainly treated with warping and improvement of saline - alkali soil, low and waste lands, which plays an important role in improving the ecological environment and developing the agricultural production in the areas by two banks of the lower yellow river

    黃河下游引黃灌溉中的泥沙主要採取放淤改土、改造低洼鹽堿沙荒地，對黃河下游兩岸發展工農業生產、改善生態環境，起到了重要作用。
  12. On the basis of theory analysis, the average transmitted light intensity ( correspond to dc value ) was determined as characteristic parameter of raw water using photoelectric method for monitoring the fluctuation of transmitted light and photometric dispersion analyzer ( pda ). the dc value was closely related to both particle concentration and surface area of sand clay simultaneously. the experimental results shows that there is an exponential function relation between dc and surface area of sand clay in unit volume water ( sp ) : dc = asbp in which a and b are empirical coefficients. then the formula of macromolecule flocculant dosage is found to be d = f ( dc ) = e ( dc ) f in which e and / are empirical coefficients and the average correlation coefficient equal to 0. 981. so the model of automatical control system of water treatment plant was established using the formula

    應用透光率脈動檢測技術和光散射顆粒粒度分析儀（ pda ） ，通過理論分析，將pda的輸出信號之一? ?平均透光強度（對應于dc值）作為原水的特性表徵參數， dc值可以同時反映顆粒濃度和比表面積因素的影響，試驗結果證明， dc值與單位體積水中泥沙顆粒總表面積s _ p之間具有很好的冪函數關系： dc = cs _ p ~ d ，式中c 、 d為經驗系數，進而得到了以dc值為參數的高分子絮凝劑投藥量公式： d = f （ dc ） = e （ dc ） ~ f ，式中： e 、 f為經驗系數，平均相關系數達0 . 981 ，利用所建立的公式，建立了前饋? ?后饋聯合控制的在線自動投藥模型。
  13. Terraces on slope land delete the conditions of causing soil and water loss. ponds, cistens, water cellars enhance surface water use efficiency, warping dams can store flood, decrease flood peak, retain sediment, and conserve water

    坡地修梯田消除了產生水土流失的條件，蓄水池、旱井、水窯提高了對地表水資源的利用率，淤地壩具有蓄洪水、削洪峰、攔泥沙、涵養水源的作用。
  14. Firstly, we account for the former made and the sand selected are reasonable by experiments. then we develop the first project carrying the experiment for filling up of 30 years. contrasted with the count, the results have no difference, we carried two experiments under different water levers by the actually facts if engineering work in early days. by the result, we know that the gross of fill up have no difference

    本文從白石水庫泥沙模型試驗入手，模型試驗首先通過模型糙率和模型選沙驗證試驗，說明模型製作和選沙是合理的；然後開展初設方案30年運用水庫淤積試驗，並與數模計算對比，基本相同；試驗結合工程初期運用實際情況，進行了兩個不同初期運用水位方案的對比試驗，從兩個方案試驗結果看，初期運用的兩個方案淤積總量差別不大，而從效益看，方案二優于方案一。
  15. The setting velocity of a particle directly characterizes its reaction too flow.

    單顆泥沙沉降速度直接表現出它對水流的反作用。
  16. Finally the constitution, function, principle and application range of an automatic system for monitoring sediment with r ray and velocity of river flow is described in detail

    本論文最後詳細闡述了射線河流泥沙含量和流速自動化監測系統的組成、功能、工作原理以及應用范圍。
  17. Further research suggests that waves stir sediments and tidal currents transport the sediments, and waves and tidal current are combined into the dominant dynamic mechanism of coastal erosion, of which tidal residual current takes and transports sediment outward, thus it causes sediment to wane in the coast

    進一步結合波、流動力的對應分析認為，波浪以掀沙為主，潮流以輸沙為主，波浪和潮流的聯合作用是飛雁灘海岸侵蝕的主要動力機制，其中潮流主要通過餘流攜沙外輸，造成近岸泥沙虧損。
  18. Finished the following important consulting projects in recent years : ( 1 ) to take charge of and participate in the design of the project of 25 thousand - ton petrol and gas quays of the jiangyin petrol company. ( 2 ) to take charge of and parricipate in the design of the project of 25 thousand - ton petrol and gas quays of zhang jia gang hada company. ( 3 ) to organize the feasibility study on the coastal engineering test hall construction project of nhri. to take charge of and participate in the design of the hall ( a large - size wave basin, 70m long and 50m wide. was constructed in it ). ( 4 ) to organize the project feasibility study of the laboratory of nhri for the basic law research on sediment transport, to take charge of the design of the project, and to participate in the design of the wind and wave flume ( 180m long ), in which the scientific research projects of waterway training works and coastal engineering structures can be carried out under the combined action of wind, wave and current

    近幾年來主要完成以下幾項重大工程： 1 .主持並參與江陰石油公司2 . 5萬噸級油氣碼頭的設計； 2 .主持並參與張家港哈德公司2 . 5萬噸級油氣碼頭的設計； 3 .編寫了南京水科院海岸工程試驗廳可行性研究報告，主持並參與該試驗廳的工程設計，在該試驗廳內建有70米長50米寬的大型波浪水池； 4 .編寫了南京水科院「泥沙運動基本規律研究實驗室」工程可行性研究報告，並主持該項工程設計，參與完成180米長風浪水槽設計，該水槽建成后，可在風、浪、流綜合作用下進行航道整治和海岸工程的科學研究。
  19. Incipient motion of riverbank sand subject to seepage

    滲流作用下的岸坡泥沙起動條件
  20. To investigate the space / time distributions and occurrence and evolution of such events, the diffusion pattern over deserts, turbulent transfer features in sandstorm weather, the particle size distribution, mass concentration and its distribution, optic properties, chemical composition and physical factors responsible for the initiation of raising sands, we made integrative observation and sounding of sandstorms deep in the large - scale desert area, including tengri, badanjilin and maowusu, with the items consisting of micrometeorological measurement, 3d wind observation, data from kb - 120 and anderson samplers of mass concentrations of sands with their spectrum, the distribution of aerodynamic particle sizes from the aps3310a, retrieval of aerosols " optic depth from sunphotometer data, assay of the chemical composition by means of neutron activiation analysis ( naa ) and integrated study of all related factors for causing sandstorm to occur, based on the observations of all kinds

    利用所取資料，系統分析了不同強度沙塵天氣條件下沙塵氣溶膠質量濃度和質量濃度譜、粒子譜分佈、光學厚度、化學組分等特徵；綜合分析了影響沙塵起動的諸物理因子在沙塵起動中的作用；用沙塵輸送模式對一次沙塵暴天氣造成的泥雨過程的形成機制進行了模擬。歷史氣象資料統計分析表明，沙塵暴有其高發期（ 4 、 5月）和高發時段（ 14 - 20時） ， 14時到20時之間發生的沙塵暴約占沙塵暴總次數的66 。揚沙和沙塵暴天氣條件下，湍流動量通量和湍流感熱通量都是重要的湍流交換，沙塵暴發生前近地層的超絕熱不穩定對沙塵暴天氣有加強作用。
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