surface velocity 中文意思是什麼
surface velocity
解釋
表面臨-
In this paper a kind of cardio - cerebral arterial bifurcation vessel hemodynamic characteristics are studied with the boundary element method, and the blood flowing velocity vector distributions have been calculated. in addition, the flow field distribution and the pressure on the particle surface are also calculated, when there is flow - round particle at the place of bifurcation, the move tendency of the particle is judged, the possible reasons of causing the atherosclerosis, thrombus, angioma are analysed
本文用邊界元方法研究了一類典型心腦動脈分支血管中血液流動的流體動力特性，計算了分支血管血液流動的速度矢量分佈，同時計算了分支附近有多個顆粒狀繞流物時血液的流場分佈，及顆粒物所受壓力狀況，給出了顆粒物的運動趨勢，分析了引起粥樣斑塊病變、血瘤、血栓的可能原因 -
The velocity field has been designed in this article on defect of rolling workpiece surface about cross wedge rolling technique in the process of forming axial symmetry spare parts by result of simulated experiment of consult document [ 4 ]
摘要依據文獻[ 4 ]的模擬實驗結果，擬定了楔橫軋工藝成形階梯軸類件時軋件表面出現表面缺陷（蛇皮狀或魚鱗狀缺陷）時的金屬流動速度場。 -
And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media
以土力學模型為基礎，利用以土骨架和孔隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震波傳播，採用了顯式差分方法（中心差分法和newmark常平均加速度法結合）和透射邊界，通過比較利用幾種差分格式求解的加速度結果，發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用，分別編制了體波（ p波或sv波） 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。 -
Light gas gun was used to create shock pressure. staged samples, cuneiform window with aluminium coat on the reflecting surface and visar ( velocity interferometer system for any reflector ) were employed in the experiments. polymethyl methacrylate and ofhc copper were assembled as the impactor to impact staged samples
採用氣炮加載，利用臺階樣品、雙點式visar （ velocityinterferometersystemforanyreflector ）和鍍膜楔形窗口技術，以有機玻璃和無氧銅組合為飛片，碰撞無氧銅臺階樣品。 -
As we know, inverse techniques make blade ' s profile well compatible with its surface velocity distribution, however, they give designers big challenges that the ideal velocity distribution is hard to obtained and sometimes the non - physical solution, such as double covering of flow field or unclosed profiles, would come out. the proposed design procedure in the paper has avoided the disadvantage mentioned above. in this paper, a quasi - irrotational equation is used to describe the flow in cascade instead of the generally used irrotational equation
眾所周知，一般的反問題和混合問題的最大特點，是在給定的壓力面和吸力面上的壓力分佈或速度分佈條件下，直接得到葉片的幾何形狀，它可以使葉型型面與表面氣流參數有機結起來；其不足之處在於，對設計者而言，很難給定理想的葉片表面壓力分佈或速度分佈，並且有時會得到一個非物理解，如：得出的初始葉型可能會出現前緣、尾緣不封閉的現象。 -
In the process of work, according to complex geological conditions such as huge thick soft clay in site and top surface of possible pile foundation supporting course fluctuating in large amplitude, we adopted many advanced exploratory methods ( just as high accuracy exploration of shallow earthquake, crosshole wave velocity test, vane shear test, pressuremeter test, etc. ), we found out that there is an ancient groove of yangzi river in former plant site, therefore we suggested in time that plant site should properly be moved eastwardly, only this item saved nearly about 50 million for pile foundation project cost
在工作過程，根據廠址區軟粘土厚度大、可能作為樁基持力層頂面起伏變化大等復雜地質條件，採取了多種先進的勘探手段（如高精度淺層地震勘探、跨孔波速試驗、十字板剪切試驗、旁壓試驗等） ，查明了原廠址區存在一個長江古凹槽，並及時建議廠址適當東移，僅次一項就節省樁基工程費用近5000萬元。 -
A one - dimensional oceanic mixed layer model with the m - y level - 2. 5 turbulence closure schemes is employed. the rate of energy loss by breaking waves is estimated by parameterization and incorporated into the model as a source of turbulence kinetic energy ( tke ) by modifying the existing surface boundary condition of tke equation. the velocity field and turbulence energy budget are calculated under different forcing conditions ( the results given below are for a wind speed of 20 m / s. )
採用一維2 . 5階湍封閉混合層模式，根據參數化方法對波浪破碎導致的能量耗散率進行了估計，通過改變湍動能方程的上邊界條件引入波浪破碎對湍動能生成的影響，計算了不同風應力強迫下的混合層流場結構和湍能量收支（下述給出的結果是取風速為20m s得到的） 。 -
Because of gravitational attraction, the escape velocity at the surface of a star, say, will be higher if the star is smaller in size or heavier
恆星質量越大，體積越小，引力的羈絆便越大，所需逃逸速度亦越高。 -
On the other hand, it is indicated that the velocity field consists of a depth - independent inertial oscillation and a time - mean shear flow, which can be obtained by subtracting the inertial oscillations time mean in one inertial period. the hodograph of the velocity vector of time - mean flow at the different depths consists of a ekman spiral, and the surface velocity is 30. 3 ? to the right of the wind
一維模式的流場結果表明，混合層中的流場是由慣性波動與時間平均流兩部分疊加而成，且通過時間平均消去慣性波動后得到平均流，其不同深度的流速矢量構成一ekman螺旋，表層流速矢量相對風向右偏了30 . 3 』 。 -
The maximum surface velocity near the center is somewhere between one and two feet per day.
靠近中心的最大表面流速為每天大約12英尺。 -
The inversion results of the theory model and actual data show that the method can reconstruct near - surface velocity field of complex structure stably, quickly and accurately, thus, can calculate the statics and ensure structural imaging in complex area
理論模型和實際資料的反演結果表明，該方法能穩定、快速、準確地重建復雜地區的近地表速度場，建立準確的近地表速度場，從而可計算準確的靜校正量，保證復雜地區的構造成像。 -
Distribution and calculation of surface velocity field in ship wakes of sar image
合成孔徑雷達圖像中艦船航跡表面速度場的分佈與計算 -
The authors established an initial velocity model based on the first break time of the actual data, then realized the forward calculation with the improved shortest path ray tracing algorithm, and applied the improved constrained damped simultaneous iterative reconstruction technique ( cdsirt ) to solve large - scale and sparse equations for inversing the near - surface velocity field
根據實際地震數據的初至波時間建立初始速度模型；採用改進的最短路徑射線追蹤演算法進行正演；利用改進的約束帶阻尼聯合迭代重建技術（ cdsirt ）求解大型、稀疏的方程組來反演近地表的速度場。 -
Based on the acoustic radiation mode analysis, the transfer matrix relating the pressure at every field point to normal component of surface velocity is formed
摘要基於聲輻射模態分析，建立了外部場壓和結構表面振動速度之間關系的傳遞矩陣。 -
Rebuilding near - surface velocity field is very important for calculating statics
摘要近地表速度場的重建是獲得準確靜校正量的關鍵。 -
Real - time surface velocity field measurement system and three - dimensional particle velocity measurement system are developed. systematic experimental research on the movement of coarse sediment particles in open - channel flows was carried out using developed system
本文研製開發了表面流場實時測量系統和顆粒三維運動測量系統，並採用顆粒三維運動測量系統對明槽水流中粗顆粒的運動進行了系統的試驗研究。 -
We can analyze and observe directly the reasonability of processed data, that is helpful to improve the quality of tomography inversion and the reliability of velocity model tomography inversion, then provide reasonable surface velocity model for tomography static correction by some means, such as rotating, scale graphics, meanwhile combining with relating sectional drawing and clipping drawing
通過對三維立體進行全方位旋轉、縮放顯示，並結合與三維體一致的剖面和平截面的綜合考察，便於直觀地分析、監控地震數據處理結果的合理性，有助於提高模型層析反演的質量和表層速度模型層析反演的可靠性，並可為層析靜校正提供合理的表層速度模型。 -
The maximum surface velocity near the center is somewhere between one and two feet per day
靠近中心的最大表面流速為每天大約1 2英尺。 -
Then, the development of the tomography is reviewed in brief, while the status in quo of this technique is investigated. and analyzing two key facts in using the method, first, yield data gather ; second, solve near - surface velocity after tomographic inversion
然後回顧了層析成像方法的發展歷程，並調查了層析成像方法的研究現狀，分析實際應用中存在的兩個關鍵問題，一、野外數據採集；二、用層析成像方法反演求解表層速度，從而確立了本文的研究方向。 -
The paper proposed the methods of multi - azimuth inverse vsp tomography to calculate near - surface velocity aimed replacing micro - log method at complex surface places
本文首先就復雜地表常規微測井技術求取表層速度存在的問題，提出了多方位角逆vsp層析成像方法。
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