泥沙分佈 的英文怎麼說

中文拼音 [níshāfēnbù]
泥沙分佈 英文
sediment distribution
  • 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
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 泥沙 : [地] silt; sediment
  1. 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。
  2. Frequency distributions of properties, e. g. size and settling velocity are necessary to the description of sediments.

    粒徑和沉速的頻率分佈特性對于描述泥沙都是必需的。
  3. Compared with measured data, this equation can describe the sediment concentration distribution better both in main flow region and near - bottom region

    與實測資料對比表明，該公式能更好地描述包含主流區與近底流區在內的泥沙含量分佈規律。
  4. Yellow river estuary is typical weak tide and high sediment deposition estuary, the yellow river sediment transport and settling deposition process is the capital factor to determine estuary evolvement characteristics. any method provided for estuary management, there is no exception to have tight relationship with estuary sediment transport and settling deposition process. this paper summarized the yellow river estuary basic characteristics firstly, point out existing problem in this research domain

    黃河河口系典型的弱潮多沙堆積性河口，黃河河口泥沙的輸移擴散和沉積過程是決定河口演變發展特徵的首要因素，黃河河口任何一項治理措施的提出，無一例外均與河口泥沙的輸移和沉積分佈狀況存在密切關系本文首先對黃河河口的基本特性進行了概括總結，在簡略回顧黃河河口泥沙輸移與沉積的有關研究成果的基礎上，指出了當前在此研究領域內存在的問題。
  5. 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。
  6. Analyze the yellow river estuary sediment transport and distributing affected factors, utilize the field measured data, based on the hydraulics, river hydrodynamic and statistics fundamental theory, analyze the estuary sediment transport and settling deposition regulation, yellow river estuary gate area sediment deposition mechanism and estuary delta coastline dynamic balance, and some important achievements acquired

    研究報告分析了黃河河口泥沙輸移和分佈的影響因素，利用實測資料，運用水力學、河流動力學、統計學等基本理論和原理，對河口泥沙輸移及其分佈規律、黃河河口口門區域泥沙沉積機理以及河口三角洲岸線的動態平衡問題進行了分析探討，並取得了部分重要認識和進展。
  7. In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data

    本文根據漫灘水流的運動特點，將漫灘水流的復式斷面分為主槽平衡區、灘槽交互區、灘地平衡區及邊壁區等4個區，並給出了各區寬度的經驗公式.根據灘槽交互區垂線流速分佈的變化特點，提出了附加尾流函數的對數流速分佈公式.在簡化水流運動方程和泥沙擴散方程的基礎上，對灘槽交互區內垂線平均流速及含沙量沿橫向分佈進行了理論分析，提出了反映灘槽水流動量交換強度的橫向渦量粘性系數及橫向擴散系數的表達式，得到了漫灘水流垂線平均流速及含沙量沿橫向分佈的解析解，並與實測資料吻合較好
  8. Study on distribution and calculation method of reservoir sediment dry bulk density

    水庫淤積泥沙干容重分佈規律及其計算方法的研究
  9. In this paper, the deposition evolution process in qtx reservoir are studied, the incoming water and sediment, the operation data, and the time and space distribution of longitudinal and lateral sedimentation in reservoir are analyzed in detail, and the longitudinal scouring and sedimentation and lateral deformation law in reservoir tidal flat and mainstream under different operation way are summarized in every operation period

    本文以黃河青銅峽水利水電樞紐工程水庫淤積演變過程為研究對象，對青銅峽水庫來水來沙組成、水庫運行資料、水庫縱橫向泥沙淤積時空分佈等進行了較詳細的分析，總結了青銅峽水庫各個運行時期不同運行方式下水庫灘槽縱向沖淤和橫向變形規律。
  10. The paper starts with the reservoir sedimentation, operation mode and catchment runoff characteristics. the study comprises of distributing of runoff and sediment in the catchment, the influence and trend of sedimentation and water storage under different operation mode

    課題研究主要從水庫淤積狀況、運用方式和流域徑流特徵分析入手，闡述了流域徑流、泥沙時段分佈，研究了不同運用方式下水庫沖淤的主要影響因素及變化趨勢，分析了不同運用方式時水庫淤積情況和攔蓄水量。
  11. Liquid flow in open channels - sediment in streams and canals - determination of concentration, particle size distribution and relative density

    明渠水流.河河渠泥沙.含沙量粒度分佈和相對密度的測定
  12. Due to issues of dongting lake districts flood composition, the evolution of sediment flow, the river and lake ( r & l ) distribution characteristic as well as the layout of r & l - dredging engineering, the article simulated the model of the dongting lake terrain change by using the gis technology and adopted the limited volumetric method to establish the two - dimensional hydraulics computation model of lake in order to forecast the water level, the flow capacity, the speed of flow and changes of flow field after implemented the project, which have provided the reliable theoretic basis for the decision - making and implementation of renovation for river course, canal and harbor and river course - dredging engineering

    摘要針對洞庭湖區的洪水組成、水流泥沙演變、河道湖泊水系分佈特點以及河道湖泊疏浚工程布局情況，利用gis技術模擬洞庭湖地形變化，採用有限體積法建立了湖泊二維水力學計算模型預測疏浚工程實施后的水位、流量、流速流場變化，為河道、航道港口整治、河道疏浚清淤等工程決策與實施提供了可靠理論依據。
  13. And sand land is 41. 47 % of the whole watershed, which mainly distributes in the middle of the study area

    其中，沙夾泥田占流域面積的41 . 47 ，主要分佈在流域的中部。
  14. Distribution law of deposits dry bulk density and its application in sediment restoration of check - dam

    壩地淤積物干容重分佈規律及其在層泥沙還原中的應用
  15. Along the coast distribution from the accumulation of loose sand or gravel from the flat surface

    沿海岸分佈，由鬆散泥沙或礫石堆積而成的平緩地面。
  16. Based on the topographic features and data of sediment particle size of bed load at the fluctuating backwater reach of liujiaxia reservoir, the streamwise variation and variation process of median diameter of bed load during silting and scouring periods of the fluctuating backwater reach are analyzed, and it can be seen that the turning point for the sediment diameter variation from coarse to fine is located at the outlet of shigou gorge of the fluctuating backwater reach

    摘要根據劉家峽水庫變動回水區的河段地形特徵和歷年河床質泥沙粒徑級配資料，分析了變動回水區河段淤積和沖刷時，河床質泥沙中值粒徑的沿程變化和歷年河床質泥沙中值粒徑變化過程，並指出粒徑分佈由粗變細的轉折點在變動回水區寺溝峽峽口處。
  17. 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。
  18. The rule represents the tectonic evolution feature ' s controling to the depositional infilling styles and facies " distribution. in dawan area, the top and the middle strata of the shahejie formation also developed a set of fan - delta sediment similar to the bottom of the shahejie formation, but the scale is significantly smaller

    本區主要發育了兩套烴源巖，即沙三中段的暗色泥巖和沙三上段的煤系地層，它們在工區的兩個主要生油窪陷?於家房子窪陷和黃沙坨窪陷都有分佈，且厚度巨大。
  19. Consequently, the generalized suspended sediment concentration profile suggested by ni ( 1989 ) is derived directly from the basic governing equations

    從而對倪晉仁和王光謙提出的懸移質泥沙分佈的統一公式給出了理論解釋。
  20. On application of laser grain - size distribution meter in particle - size analysis and research of sediment in the yangtze river

    激光粒度分佈儀在長江泥沙分析研究中的應用
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