水底地形 的英文怎麼說

中文拼音 [shuǐdedexíng]
水底地形 英文
bottom relief
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 底 : 底助詞（用在定語后, 表示定語和中心詞之間是領屬關系, 現在多寫作「的」）
  1. They differ somewhat from bathymetric charts which are virtually topographic maps of the ocean floor.

    它們與水深圖稍有不同，後者實際上是洋底地形圖。
  2. Using the hulscher model of the formation of sand waves and sandbanks, under the ancient bathymetry, or under the modern bathymetry, the stokes number of the tidal flow and resistance parameter in the radial sandbanks satisfy the conditions for the formation of sandbanks. the research demonstrates that the dynamic flow conditions result in the development of tidal current sandbank. the radial sandbanks and it ' s asymmetrical distributions will still maintain in the future

    應用hulscher沙波及沙脊增長模式，通過對該海域斯托克斯數及底部阻力參數的計算首次發現，南黃海輻射沙脊群海域在概化古地形和現代輻射狀沙脊群水下地形情況下，其斯托克斯數及底部阻力參數均滿足形成潮流沙脊的條件。
  3. Based on analysis of geologic foundation record about pingzhuang basin, a lot of sino - foreign geothermal geology record and investigation of field geology, measuring of ground temperature in person and geo - chemical analysis of ascension spring, gushing water of fault, the fact that the anomaly of geothermal gradient of pingzhuang basin, which is in region of low geothermal gradient, is caused by redistribution of conduction - oriented geothermal heat flow which is result from upheaval and depression of basin foundation bed is pointed out. after the field of ground temperature is simulated under the background of conduction - oriented geothermal heat flow by means of ansys, the characteristic of ground temperature distribution of top surface of basin foundation bed ( yixian team ) is revealed. the sound condition of transmissibility fault and feeding water source, which are imperative in formation of the low - medium temperature geothermal system of convective type, is possessed in pingzhuang basin

    通過對平莊盆地基礎地質資料、國內外大量地熱地質資料的分析和野外地質調查、礦井實測地溫以及上升泉、斷層涌水的地球化學分析等工作基礎上，指出地處低地溫梯度背景區的平莊盆地地溫梯度異常是由於盆地基底隆起和坳陷引起傳導型大地熱流再分配所致；運用州sys數值模擬了大地熱流向地表傳導背景下的盆地地溫場，從而揭示了盆地基底（義縣組）頂界面地溫分佈特徵；闡明了盆地具有形成中低溫對流型地熱系統所必需的導水斷裂、補給水源等的良好條件，中低溫對流型地熱系統是地熱勘查的主要對象；圈定了平莊盆地北部朝陽溝?駱駝營子地熱勘查遠景區。
  4. Based on the geological, hydrogeological and hydrochemical information, the genesis of the underground hot water in qi county of shanxi has been analyzed. it is concluded that the formation of underground hot water is related to the magmatic activity in yanshan period, the goup of the base fault block forming in new tectonic period, the large depth and fast variety to underground water cycle

    從地質、水文地質、水化學等方面，分析了祁縣地區地下熱水成因，得出該地區地下熱水形成與燕山期巖漿活動、新構造運動形成的基底斷塊隆起及地下水循環深度大、交替迅速有關。
  5. The south part was slope and deep floor of the lake, and the north part was a broad shallow - water platform of the latchstring shore. in the north part, chang - 6 and chang - 7 oil - bearing beds of yanchang formation were typical shallow - water platform delta with an incomplete progradational sequence, in which the delta plain facies were well developed and the river - mouth bars were not developed

    受沉積基底地形的嚴格控制，發育于淺水臺地背景上的延長組長7 ?長6油層組表現出典型的淺水三角洲沉積特徵，具有發育的三角洲平原沉積，而前緣河口壩不發育，剖面上難以形成完整的進積序列。
  6. Today enough soundings are available to enable a relief map of the atlantic to be drawn.

    今天可以得到足夠的水深資料來繪制大西洋的海底地形圖。
  7. Today, enough soundings are available to enable a relief map of the atlantic to be drawn and we know something of the great variety of the sea bed ' s topography

    現在已有足夠的水深測量數據來繪制一張大西洋洋底地形圖，而且我對海底地形的千變萬化也有了一定的了解。
  8. In this paper, the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error, the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range, and is very expensive. 2 ) two important approaches in geophysical navigation techniques are summarized, one is terrain contour based navigation, this approach is investigated keystone today ; the other is image based navigation, due to no perfect image sensors and image seabed map, this approach has seldom been practised. 3 ) two important terrain contour based navigation algorithms has been applied to auv, one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan )

    主要研究內容包括：一、總結分析了當前水下導航的常用方法和不足之處，指出基於航位推算的導航方法，存在著最大的問題就是導航誤差的積累問題，如果沒有修正系統，這種方法很難滿足使用要求；其次指出基於聲學的導航方法，造價昂貴，導航范圍有限，難以滿足自主水下航行器大范圍導航的需求；二、總結了當前水下地形輔助導航的主要技術路線，一是基於地形高程的匹配方法，這是當前研究的重點；二是基於地形圖像的匹配方法，由於缺乏良好的圖像傳感器，和可用的海底圖像地圖，目前這種方法還有待研究發展；三、將兩種地形高程匹配的常用方法應用到自主水下航行器上：以相關演算法為前提的地形輪廓匹配（ tercom ）方法和以卡爾曼濾波為基礎的桑迪亞慣性地形輔助導航（ sitan ）方法，前者演算法簡單可靠，但是導航精度不高，後者雖然精度比較高，但存在著演算法較為復雜、有可能發散和出現奇異值等問題。
  9. The motion of shallow waters is strongly dependent on the bottom topography.

    淺水運動強烈地依賴于底部地形。
  10. Permanent surveying markers as referred to in paragraph 1 of this article include wooden or steel signals and stone markers established at triangulation points, baseline points, traverse points, military control points, gravimetric points, astronomic points and leveling points of various orders and classes, as well as fixed markers used for topographic mapping, engineering surveying and deformation measurement, and installations at seabed geodetic points

    第一款所稱永久性測量標志，是指各等級的三角點、基線點、導線點、軍用控制點、重力點、天文點、水準點的木質覘標、鋼質覘標和標石標志，以及用於地形測圖、工程測量和形變測量的固定標志和海底大地點設施等。
  11. The ore - bearing fluid of dabaoshan deposit was relate to magmatic thermal dynamic process and formed hydrothermal sedimentary polymetallic deposit at seafloor. the ore - bearing fluid of fankou was relate to circulation hydrothermal fluid in deep formation and formed pb - zn - ag - hg polymetallic middle - lower temperature sedimentary deposit by sea - floor thermal spring overflowing

    大寶山型流體與巖漿熱動力作用有關，形成海底火山熱液沉積多金屬礦床；凡口型流體與深部建造的循環熱液有關，形成中低溫海底熱泉噴溢沉積鉛鋅銀汞礦床；紅巖型流體與盆地成巖壓實水有關，形成低溫單一黃鐵礦礦床。
  12. The digital map is usually formed by the water depth ' s database measured on the seabottom. because of the disadvantage that the database is kept secret, this dissertation introduces a new method : first, the depth data are picked up from the electronic chart, then interpolation of the depth datum by kriging algorithm is adopted to gain the digital map. the method is the precondition of the terrain matching when it is researched by simulation, and it is the complement of the database

    通常數字地圖都是通過海底測量的海底水深數據庫來形成，針對水深數據庫存在保密性等特點，本文提出了一種從電子海圖提取水深數據，然後採用kriging方法進行插值形成數字地圖的方法，該方法是進行地形匹配模擬研究的前提，而且它也是海底水深數據庫的一個補充。
  13. For solving the problems that downward continuation of the space gravity anomaly can not be used in downward continuation of sea surface gravity anomaly, on the basis of prey principle used to compute gravity in the surface - layer of the earth, and with considering the density of sea water and sea bottom topography, two new methods are proposed

    摘要針對空間重力異常向下延拓方法不適用於海面重力異常向下延拓的問題，根據珀雷原理求地球表層內部重力的方法、海水密度及海底地形的特徵，提出了兩種海面重力異常向下延拓的演算法。
  14. In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material

    本文首先根據散拋石壩損毀情況的現場調查資料，結合有關專家多年的整治經驗，總結出壩體的損毀原因及影響因素；對現有塊體穩定性的研究成果進行回顧和總結，並針對散拋石壩的直接損毀現象，結合山區河流的水流、地形特點，利用塊體粒徑與起動流速的關系，提出塊體穩定重量與起動流速高次方成正比的概念，流速50的增長可能導致塊體穩定重量接近40倍的變化；通過二維變坡水槽試驗，研究了壩體穩定的主要影響因素，包括塊體重量、壩頂水深、斷面尺寸、塊體材料（塊石和卵石兩種） 、護底等，結果表明對于山區河流，試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微；最後，根據西部地區的自然、經濟、交通等條件，提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施，以期取得良好的工程效果。
  15. In this paper, the physical experiment and numerical simulation based on the volume of fluid ( vof ) method to solve turbulent governing equations in the numerical wave tank are conducted to investigate the interaction between surface waves and sandbars on the seabed

    本論文通過物理模型試驗和基於vof方法求解湍流控制方程所建立的數值波浪水槽模型，對波浪與海底沙壩地形之間的相互作用進行了研究。
  16. Real time seafloor tracking technique is the critical technique to ensure smooth seafloor surveying with full coverage and high efficiency. after detailed investigation on stochastic features of seabed reverberation produced by mbss systems, the author presented an algorithm and a set of relevant key coefficients for real time seafloor tracking, taking into account of characteristics of signal processing and timing sequence of the real system and introducing theorems of terrain surveying. as an achievement, a mathematical model was established based on the technique of centered filtering

    海底地形實時跟蹤技術是保證多波束測深系統實現高效率全覆蓋水下地形測量的核心技術，作者通過對多波束測深系統海底回波信號統計特性的研究，依據地形測量理論，並結合實際系統信號處理的技術特點和處理時序，提出了實現海底跟蹤控制的關鍵參數及計算方法，建立了基於中值濾波技術的海底地形實時跟蹤數學模型，並開發出實時地形跟蹤專家系統，該系統經多次海上實驗驗證表明：理論正確、方案可行，取得良好效果。
  17. This kind of instability bulk movement is induced by wave cyclic loading, as a result the slope of bottom bed decrease, water depth increase, and instability bulk movement has the character of subregion, regularity and head erosion, thus it will influence evolvement of region of interest landform, and change flow field and bottom stratum condition continually, so will lead to dynamic influence on structure foundation soil

    這種不穩定塊體運動由波浪循環荷載誘發，其結果使底床整體坡度減緩，水深加大，而且不穩定的塊體運動具有小區域、多發性和溯源侵蝕的特點，將繼續影響著海域以後的水深地形的發展演化，並不斷改變著該區的流場與底床地層條件，對構築物地基土的穩定性產生著動態的影響。
  18. The elephant foot bulging deformation of rigid walls of liquid - storage tanks under horizontal and vertical seismic ground motions is analyzed by using the finite element model involving fluid sloshing and tank bottom uplift with ansys

    摘要基於ansys軟體建立了考慮液體晃動和罐底提離立式儲液罐有限元模型，分別進行了水平地震和豎向地震作用下罐壁「象足」變形分析。
  19. The effects of waves transformation, refraction, diffration, reflection and breaking are all due to the depth of water, varying topography, bottom friction, obstacles and current as waves proceed from offshore to near shore regions. some basic parameters which are relevant to the cost of buildings as well as the type of structures are determined by the wave factors since these projects are placed in near shore area, so it is of great importance to study the regularity of wave transforming

    外海波浪傳入近岸淺水區受水深、地形、底摩擦、障礙物以及水流等因素的影響，會發生變形、折射、繞射、反射和破碎等各種現象，然而大部分海洋及海岸工程位於近岸地區，該地區的波浪要素將是確定工程造價、建築物型式等最基本的參數，因此研究近岸地區波浪的變化規律具有重要意義。
  20. Through analysis, we conclude that washing action of wave and flow is main power of evolvement of region of interest landform, structure lead to the fact that water area around shallow structure in cheng dao sea field has an increase about 0. 3m / a through actual measurement, water depth increase rate around foundation is 0. 25m / a, slope gradient of side slope averagely has a decrease of 5 % o a year, however marine hydropower wash rate through compute is 0. 2m / a on underwater bottom, the wash rate on structure foundation is 0. 35m / a

    分析認為，浪流的沖刷作用是研究區水深地形演化的主要動力，構築物的存在，使埕島海域淺水區人工構築物周邊水域實測年水深增加幅度約0 . 3m a ，地基附近水深增加速率0 . 25m a ，邊坡坡度平均每年以5減緩，而計算得出的海洋水動力沖蝕速率在水下底坡為0 . 2m a ，在構築物地基沖蝕速率達0 . 35m a 。
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