sediment distribution 中文意思是什麼

sediment distribution 解釋
泥沙分佈
  • sediment : n. 1. 沉澱（物）；沉渣。2. 【地質學；地理學】沉積物。
  • distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
  1. The population distribution of physiological groups of bacteria ， including ammonifying bacteria, denitrifying bacteria, nitrobacteria and nitroso bacteria, organic phosphate dissolving bacteria and inorganic phosphate dissolving bacteria in water body and sediment of suzhou creek are studied with mpn and flat account method from jan. 2002 to mar. 2003. the role of these physiological groups of bacteria in suzhou creek aquatic ecosystem is discussed

    用最大可能數（ mpn ）法和平板計數法，於2002年1月2003年3月對蘇州河水體和底泥中的主要微生物功能菌群? ?包括有機磷分解菌、無機磷分解菌、氨化菌、亞硝化菌、硝化菌和反硝化菌等進行了生態調查，並分析探討了它們在蘇州河水生態系統中的作用。
  2. Chondrite normalized ree distribution patterns for the core q43 are comparable to those of the sediment of changjiang river and huanghe river delta

    球粒隕石標準化后的稀土元素具有與長江、黃河、黃土等上陸殼沉積物相一致的特徵。
  3. The lognormal distribution is widely used in geology to characterize sediment size variations and geochemical element concentrations.

    在地質學中，對數正態分佈已被廣泛用以表示沉積粒度變化特徵和地球化學元素濃集情況。
  4. This research will try to resolve the distribution and controlling factors of gas layers by the study of division of substrata in bawu gas field. the main reservoir of bawu gas field are the sand layers in the formation of k1sh, k1y, k1d, k2q, sediment delta plane, delta frontier, plait delta developing distributary riverway sand, bayou sand dam, far sand dam and river sand of plait

    八屋氣田主要儲層為早白堊世的沙河子組（ k _ 1sh ） 、營城組（ k _ 1y ） 、登婁庫組（ k _ 1d ）及晚白堊世的泉頭組（ k _ 2q ） ，為三角洲平原、三角洲前緣及辮狀河三角洲沉積體系，發育分流河道砂、河口砂壩、遠砂壩、辮狀河道砂等，砂層在平面上連通性差。
  5. The result reveales that the decrease of sediment transportation of the upper reaches results in riverbed scouring and coarsing on yidu reach ; the upper and lower shallow regions in shahong are separately deepened and broadened, while the thalweg in shihong is lowered, and nanyangqi is scoured and draw back … all the above may cause variation of the distribution pattern

    結果表明，來沙量減少使宜都水道沖刷，沙泓上淺區沖刷下切，而下淺區以沖灘為主，石泓深泓沖刷下降，南陽磧沖刷縮小，分流格局有發生變化的趨勢。
  6. Suspended and bed load transport were simulated with a non - equilibrium method. the source treatments in sediment transport equations, suspended load carrying capacity of the non - uniform material and exchange of size - distribution of the bed material are presented. 5

    二維懸沙和底沙運移採用不平衡輸沙模式，分析輸沙方程的源項處理以及非均勻沙分組挾沙能力和床沙級配調整。
  7. 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。
  8. It has been proven that the differences of magnitude and distribution of tidal currents, wave energy rate, suspended sediment concentration and the stokes number result in a asymmetrical distribution of sandbanks between the north and south. the sandbank surface area and length in the north are lager than those in the south, but its cross section area is less than that in the north

    各種動力特徵平面分佈規律研究表明，輻射沙脊群南北沙脊不對稱分佈的格局是潮流沙脊對潮流往復流性質的強弱分佈、潮波能流率大小分佈、含沙量的平面分佈規律及斯托克斯數的大小分佈的動力響應。
  9. 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。
  10. 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
  11. However, according to ann ' s theory, making use of visual basic development tool, friendly - interface single output three layers " artificial neural network generator base on improved bp algorithm has been developed by the author, and after constructing the model, the value of d _ ( cmax ), finally the gross bed - load transport rate of non - uniform sediment with a wide distribution in flume experiment of stead sediment transportation have been forecasted

    筆者採用的途徑則是根據人工神經網路理論，利用vb開發出界面友好、基於改進bp演算法的多輸入單輸出三層神經網路生成器軟體，並採用該生成器建模，對平衡輸沙狀態下的水槽輸沙試驗的d _ （ cmax ）和總輸沙率進行預測計算。
  12. 8. a simplified 3 - d natural river flow and sediment transport model is developed based on hydrostatic pressure distribution. the model has been applied to investigate the 3 - d flow and suspended - load transport in nanjing river reach with two branches

    （ 8 ）天然三維水流泥沙簡化數值模型，成功地模擬南京某河段水流運動和多分汊河道水沙計算，結果可靠並滿足精度。
  13. The antarctica plays an important role in the study of global changes and it is the only land without large - scale human activities influence which makes it is sensitive to the global climate changes. penguin is the most impartment factor in the antarctic environment and its dropping sediment records the history of the population and the distribution change on the ardley island

    南極地區在研究全球變化中具有突出的地位，南極地區的各種環境因子對全球氣候變化有敏感的反應，而且它是地球上唯一未被人類活動大量影響的地區，所以，南極地區的生態學研究有特殊的重要性。
  14. Effect of humic acid on ionic form distribution and activity of lead and cadmium in pond sediment

    鎘的離子形態分佈及其活性的影響
  15. The sediment environment and matter sources of sediment in the area were determined through the study on distribution model figure of lanthanon in the core 1146

    通過對稀土元素配分模式圖的研究，確立了本區沉積物的沉積環境及沉積物的物質來源。
  16. In this paper, kandelia candel ( l. ) druce hypocotyls were cultivated in sand and treated with 15 % seawater for 60 days under laboratory conditions. the influence of increasing concentrations of napthalene and pyrene ( 0, 0. 1, 1 and 10mg / l ) on hypocotyl germination and growth, photosynthesis metabolism, water metabolism and membrane protection system were observed to inquire into the ecophysiological responses of mangrove k. candel to pahs phytotoxicity. moreover, the concentration and distribution of parent polycyclic aromatic hydrocarbons ( pah ' s ) in surface sediment, underground root and leaf residue of mangroves in jiulong river estuary ( fugong, north and south shores of haimen island, baijiao ), neighbouring xiamen western harbour ( dong islet ) and dongzui harbour ( fenglin ) were examined

    在實驗室條件下，分別以0 . 1 、 1和10mg l的萘（ nap ）和芘（ pyr ） 3個梯度濃度組級砂基培養秋茄（ kandeliacandel （ l . ） druce ）幼苗，培養基鹽度15 ，培養期60d ，以不加pahs為對照，分析了nap和pyr對紅樹植物秋茄幼苗的生長、光合代謝、水分代謝以及膜保護系統的影響，探討pahs對紅樹植物秋茄的的生理生態效應及植物性毒害（ phytotoxicity ）的機理。
  17. 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
  18. 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。
  19. And it is also possible to analyze the reservoir property in reservoir framework. taking the reservoir of zonation 6 - 10 in s32 of pucheng oil field in henan province as an example, we founded the detailed reservoir stratigraphic framework through base - level correlation. in the strata frame, sediment distribution and its development are discussed based on sediment volume partitioning and facies differentiation analysis

    依據基準面變化中的過程?沉積響應，分析沉積過程中沉積物體積分配及與其相伴生的相分異，進行等時地層對比，建立精細地層格架，預測儲層空間展布及其非均質性的思路為儲層精細描述提供了新的方向。
  20. On the basis of considerationbs of the physical domain, the characteristics of the tides and sediment distribution patterns of the bohai strait, a 2 - d horizontal model has been designed to study the long - term transport of sediment and accumulation over the bohai strait region. the model output is consistant with field observations, and can be used to explain patterns of long - tern transport and deposition of sediment in the study area

    本文根據渤海海峽空間尺度的大小、潮流特徵和沉積物的性質特徵，構造了一個垂向二維沉積物輸運數值模型，結合已經取得的有關潮流和沉積物的各種相關資料，進行了沉積物長期輸運的數值摸擬，所得結果符合實測的結果，揭示了本區沉積物長期輸運和沉積的分佈格局。
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