泥沙測驗 的英文怎麼說

中文拼音 [níshācèyàn]
泥沙測驗 英文
sediment measurement
  • 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
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 驗 : 動詞1. （察看; 查考） examine; check; test 2. （產生預期的效果） prove effective; produce the expected result
  • 泥沙 : [地] silt; sediment
  • 測驗 : test; trial run; examination; testing
  1. Multispectral data for bathymetry is often performed in relatively clear shallow waters, up to now, no one use multispectral data for bathymetry in estuary waters of yellow river, where the highest sediment concentration in the world has been observed. in another part of this thesis, multispectral data acquired by landsat - 5 tm and in situ data are used for bathymetry in estuarine waters of yellow river. statistical models based on one band and two bands of tm respectively are developed

    利用兩期水深的比對可以揭示黃河水下三角洲的沖淤演變規律，但由於實測水深資料獲取較為困難，因而利用遙感來反演水深是一個重要的選擇，為此，本文在黃河口海現代黃河三角洲沖淤演變規律與遙感應用研究端走取兩個試驗區進行了多光譜遙感水深反演試驗，試驗結果表明，在極高泥沙濃度、較強水動力條件的黃河口海域，用多光譜遙感反演水深是可行的。
  2. Technical standard for measurements of bed load and bed material in open channels

    河流推移質泥沙及床沙.測驗規程
  3. Code for measurement of sus pended sediment in open channels

    河流懸移質泥沙測驗規范
  4. Code for measurements of suspended sediment in open channels

    河流懸移質泥沙測驗規范
  5. 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。
  6. 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
  7. 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。
  8. Hydrologists can benefit from this system. their work efficiency and hydrological instrument automation level are advanced greatly

    此系統可幫助水文工作者更快、更準的獲取泥沙含量及流速數據，大大提高水文工作者的工作效率和水文測驗儀器的自動化水平。
  9. Coastal and estuarine engineering, layout and planning of harbours and navigation channels ; river training, siltation prediction and its measures ; mathematical model computation and physical model experiments

    海岸河口工程、港口航道總體布局規劃、河道整治、泥沙淤積的預測和對策、數學模型計算和物理模型試驗研究。
  10. Instrument for sediment measurement and particle size analysis in open channel

    河流泥沙測驗及顆粒分析儀器
  11. The process of effluent flow during loading in self - propelled trailing suction hopper dredgers was simulated by way of physical modeling and was measured and analyzed by using the flow rate and concentration of spoil in the hoppers, particle sizes of sediments at the inlet and outlet of the effluent flow pipe and hopper volume as the major control parameters

    摘要通過物理模型試驗模擬自航耙吸挖泥船裝艙溢流施工過程，以艙內流速、艙內濃度、溢流進出口泥沙粒徑、裝艙量幾方面為主要控制因素，進行實測、分析，並比較自航耙4種常用裝艙裝置的消能效果。
  12. Based on the in - situ measured data of water depth and results of physical model tests and mathematic model calculation, the influencing factors on the sediment deposition in the wharf apron after construction of wharfs are analyzed taking the wharfs in waigaoqiao port in the yangtze river estuary as an example

    以長江口外高橋港區碼頭?例，根據現場實測水深資料， ?結合物理模型試驗及數學模型計算的結果，分析建碼頭后影響碼頭前沿泥沙回淤的因素。
  13. The application study of improved bp algorithm in sediment science - using two set of experiment data mentioned above, the value of d _ ( cmax ) and gross bed - load transport rate in non - uniform sediment with a wide distribution in flume experiment of stead sediment transportation have been forecasted by ann generator

    改進bp演算法在泥沙科學中的應用研究?將收集整理后的兩次水槽試驗實測資料作為數據來源，利用生成器生成網路對水槽平衡輸沙試驗中的最大起動粒徑和總輸沙率進行預測。
  14. In the suspended sediment transport model, the method of shear stress is adopted to determine the source function in the suspended sediment diffusion equation. through a series numerical experiments and statistical analyses of observed field data, a local coefficient, which can reflect the bottom material and consolidation, is introduced into the classic critical erosion velocity of the sediment

    懸沙輸運模型利用切應力方法來確定對流擴散方程中的泥沙源函數，其中的臨界起動速度利用經典的泥沙起動流速公式前面增加一個局地系數得到，這個系數能反映河床底質結構及固結程度，通過系列數值試驗和實測資料的統計分析確定。
  15. From the viewpoint of the characteristics of two - phase liquid sand slurry wear, combined with the examination and study on easily damaged workpieces, the wear failure ' s basic rules are pointed out, of the pump shell and the cutter - piece on service, and the general principles of material wear - resistant designs put forward. the sand slurry abrasion tester has been designed and developed which can simulate general dredging conditions. summarized and presented are the position - exchange measuring method of sand slurry abrasion test and the experiment specification of sand slurry wear test of dredging conditions

    文中系統論述了作者在疏浚工況泥沙磨損機理及其耐磨新材料課題研究中的工作成果，主要研究內容和創新點如下：總結分析了磨損研究動態和提高材料耐磨性的方法；從兩相流泥沙磨損的特點出發，結合對失效易損件的考察研究，分析指出了現役泥泵殼和絞刀片磨損失效的基本規律，提出了材料耐磨損設計的基本思想；設計研製了能模擬疏浚工況的泥沙磨損試驗機，總結提出了泥沙磨損試驗換位測試法和疏浚工況泥沙磨損試驗規范。
  16. 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
  17. Based on the fractal character of the small watershed topographic feature, the spatial and temporal variation character of sediment yield of the watershed model, the dynamic developing process and fractal character of the topog raphic feature of the watershed model, and the coupling relationship between the sediment yield and the topographic feature of the watershed model are " studied by simulate experiment, fractal theory, high precise photogrammetry and gis technology. the validation research is conducted in chabagou watershed where the observation data of rainfall, sediment and runoff for 11 years is collected. the study provides new theory and method for the topographic feature quantitative research in the prediction model of small watershed sediment yield

    本文依據流域地貌形態所具有的顯著分形特徵，從模擬實驗出發，利用分形理論和方法，結合高精度攝影測量和gis技術，對流域模型侵蝕產沙時空變異特徵、地貌形態發育過程及其相應的分形特徵、流域模型侵蝕產沙與地貌形態耦合關系進行了深入研究，並以具有11年降雨泥沙徑流觀測資料的岔巴溝流域為例進行了驗證研究，為實現從單坡面侵蝕產沙模擬、預報向流域侵蝕產沙模擬、預報轉化過程中地貌形態參數的提取提供了理論和方法，為黃土高原小流域水土流失綜合治理提供了科學實踐依據。
  18. Application of laser granule - size instrument in sediment measuring for yellow river

    激光泥沙顆粒分析儀的比測試驗分析
  19. The paper introduces the methods of drying and pycnometer for sediment yield of total precipitation erosion of observation model and validates the reliability of the measurement through check tests of sediment concentration with different particle sizes

    摘要介紹了測量模型次降雨侵蝕產沙量的烘乾法和密度瓶法，並通過不同粒徑組泥沙渾水含沙量的對比試驗，驗證了測量方法的可靠性。
  20. In mobile bed experiments, the measurement of sediment concentration needs to be real - time and accurate

    摘要動床河工模型試驗中，需要對泥沙濃度進行實時和精確的測量。
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