邊定曲面 的英文怎麼說

中文拼音 [biāndìngqūmiàn]
邊定曲面 英文
bounded surface （iges ）
  • 邊 : 邊Ⅰ名詞1 （幾何圖形上夾成角的直線或圍成多邊形的線段） side; section 2 （邊緣） edge; margin; oute...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 曲 : 曲名詞1 （一種韻文形式） qu a type of verse for singing which emerged in the southern song and ji...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  1. Sometimes he was handsome : sometimes as he looked sideways, downwards, and the light fell on him, he had the silent, enduring beauty of a carved ivory negro mask, with his rather full eyes, and the strong queerly - arched brows, the immobile, compressed mouth ; that momentary but revealed immobility, an immobility, a timelessness which the buddha aims at, and which negroes express sometimes without ever aiming at it ; something old, old, and acquiescent in the race

    有時他是漂亮的，當他向地下或向旁邊注視時，光線照在他的上面，他象一個象牙雕刻的黑人似的，有著一種沉靜持久的美。他的眼睛有點突出，眉毛濃厚而奇異地糨曲著，嘴部緊縮而固定，這種暫時的但是顯露的鎮靜，是佛所有意追求而黑人有時超自然流露出來的，是一種很老的種族所默認的東西！
  2. I had often stood on the banks of the concord, watching the lapse of the current, an emblem of all progress, following the same law with the system, with time, and all that is made ; the weeds at the bottom gently bending down the stream, shaken by the watery wind, still planted where their seeds had sunk, but erelong to die and go down likewise ; the shining pebbles, not yet anxious to better their condition, the chips and weeds, and occasional logs and stems of trees that floated past, fulfilling their fate, were objects of singular interest to me, and at last i resolved to launch myself on its bosom and float whither it would bear me

    我常站在康科德河的岸邊，望著逝去的流水- - -它是一切過程的象徵，和宇宙，和時間及一切造物受同一法則的支配；那河底的水草隨著水流輕柔地彎曲，彷彿受到水底清風的吹拂，此刻還在水底紮根，但不久后就會凋零並隨波濤逝去；那閃亮的鵝卵石- - -它們還不急著尋找更好的去處，那砂石碎屑、藤蔓野草，和那偶爾從水面漂過、奔向命運盡頭的圓木、樹干，都使我產生了極大的興趣，我最終決定泛舟于康科德河的胸膛之上，隨它將我載去任何地方。
  3. Based on this milti - hierarchical model, application method for information organization of part is presented. chapter 3 proposes a new rule of arbitrary maximum angles of chord for triangulation and locale optimum, which avoides calculating angles of conventional methods in mesh simplification. moreover, with the introduction of arithmetical average windage concept, optimum method for the boundary mesh retriangulations is presented

    第三章針對曲面網格簡化操作過程中出現的空洞剖分問題，討論層次模型的網格優化方法，提出了基於弦內角最大準則的局部網格簡化方法；針對網格曲面上存在的曲折邊界缺陷，提出以邊界輪廓算術平均偏差作為邊界曲折程度評定參數的邊界平滑優化剖分方法。
  4. Position : maintains a g0 " positional " continuous transition between surface edge boundaries ( edges must touch ). this may not produce a smooth transition, but does connect the surface edges

    在面組邊界維持g0 （位置）連續（邊界要接觸） 。這選項不一定要產生一個光滑的過渡，但一定會將曲面的邊界連接。
  5. To design the local features in product digital modeling, some surface local features are assorted and defined. furthermore, several methods for surface local features design are proposed such as the treatment of cad model edge features, design of the near - edge surface features, and design of the inner - surface feature

    為了解決產品數字化建模中的曲面模型局部特徵設計難題，對曲面局部特徵進行了分類與定義，並且分別提出了cad模型邊界線特徵處理、近邊界特徵曲面設計、內部特徵曲面設計等局部特徵設計技術。
  6. The volume integrals can be transformed to surface integrals using gauss ' s theorem. two cases are studied, one is floating upright and another is free floating in 3d space

    運用gauss定理，關于空間封閉區域的三重積分可以轉化為沿封閉邊界曲摘要面的二重積分。
  7. In this paper, it s applications were explained from seven different fields, the common zeros of two polynomials, the multiplicities of roots and the discrimination of a polynomial, searching the equations suitable for a algebraic number, implicating a rational curve over the plane, computing the zeros of a nonlinear algebraic equation and gathering the discrimination surface of the sas in automated theorem proving on inequalities

    本文從7個方面闡述了結式的應用，包括判斷2個多項式的公共零點，判定多項式是否有重根，計算多項式的判別式，尋找代數數滿足的方程，平面有理曲線的隱式化，非線性代數方程組求解和不等式機器證明中半代數系統邊界曲面的獲得等。
  8. An original mesh generation method based on the nc track points of tool surfaces is proposed here, the method can automatically generate meshes consisting of only quadrilateral elements, which is desirable for better accuracy and efficiency of simulation. besides, an automatic local coarsening algorithm for structured quadrilateral meshes is also developed. for arbitrary discrete points on auto body surfaces, an automatic triangulation method is adopted and a series of mesh optimization methods with given constraint conditions are proposed

    創新地提出了基於模具型腔表面nc數控軌跡點的全自動四邊形網格生成演算法，提出了結構化四邊形網格局部自動優化演算法，研究了基於車身曲面離散點的三角形網格自動生成演算法，並提出了給定約束條件的三角形優化演算法，探討性地研究了基於模具曲率半徑的板料初始網格局部自動細化演算法。
  9. The file containing information of the scene is defined as the interface between the modeling application and rendering application. the interface gives two types of saving template, providing a discriminating standard for the rendering of plane models and nurbs models that coexist in the rendering application

    該系統以存儲模型信息的文件作為模型建立程序和場景著色程序之間的介面，在介面文件中，定義了兩種類型的存儲模板，即用多邊形集描述平面模型，用nurbs描述曲面模型。
  10. To fulfill the need of the application of rp technique in medical domain, reverse cad modeling from medical cross sections is systematically studied in this dissertation. firstly, some algorithms related to the research of this dissertation are studied. new algorithms for orientation and inclusion test for simple polygon, an error constrained automatic faring algorithm for b - spline curve and a theorem regarding the termination criterion for subdivision of triangular bezier patch are proposed

    本文針對rp技術在醫學領域應用的需要，系統研究了基於醫學斷層輪廓數據的反求cad建模理論和方法： （ 1 ）在基礎演算法研究部分，提出了簡單多邊形方向及點在多邊形內外判斷的新方法、三角b zier曲面片離散的誤差控制定理和一種帶誤差約束的b樣條曲線的自動光順方法； （ 2 ）提出了一種基於相鄰層輪廓相似性的醫學斷層輪廓數據曲面重構方法； （ 3 ）提出了一種稱為「虛擬測量」的曲面模型處理方法。
  11. The surface of conventional engineering part is composed of simple analytical surfaces and four - boundary ruled surface primarily. therefore a point cloud segmentation method based on those feature surfaces is proposed. several algorithms to identify the simple analytical surface feature are investigated and discussed

    常規工程零件的外表面中包含了大量的特徵曲面，如簡單解析曲面和四邊直紋面，因此，本文提出基於特徵曲面的的點雲分割方法，研究幾種識別簡單解析曲面的演算法；研究由點雲擬合b spline和b zier曲線的理論基礎，總結曲面擬合的幾種方法，提出一種反求定半徑滾球圓角的方法。
  12. 2. reliability of rock slope was done using responding surface method ( rsm ) and monte - carlo method ( mcm ) respectively. reliability index 0 calculated by rsm and mcm are different, which indicates the non - convexity of limit state curved surface in representation of stability of slope

    採用響應面法（ rsm ）和monte - carlo法（ mcm ）對邊坡進行了可靠度分析，兩者計算所得的可靠指標存在著一定的差異，這表明：代表邊坡穩定的極限狀態曲面存在著非凸性。
  13. The constructed surface is c2 continuous on the whole domain, and is a piecewise cubic parametric polynomial on every subdomains. the interpolating surface can preserve the convexity, concavity, inflection property and monotonicity of the data set. in the end, each algorithm brought forward in the paper is exemplified, at the same time, error is discussed

    3針對保形曲面插值問題，提出了一種插值于給定數據點集的參數型保形曲面插值演算法，所構造的曲面在整個區域上是c ~ 2連續的，在每個子區域上是分片三次參數多項式，並且保持被插函數集的所有子區域的邊界及其內部的軸向單調性、凸凹性以及拐點性質。
  14. In the aspect of the time - optimal control algorithm, with the special trajectory, a method for seeking scalar velocity bound curve and scalar acceleration limit has been proposed, which fully considered the dynamics nonlinear

    在機器人時間最優控制演算法方面，提出一種在特定軌跡約束下尋求標量速度邊界曲線和標量加速度極限分佈的方法，其充分考慮了機器人動力學的非線性因素。
  15. The significance established the system is to generalize the theories and methods of bi - cubic coons surfaces and to simplify the boundary conditions greatly which can are directly derived from the given interpolating data. hence the difficulty of determining boundary conditions of multivariate spline is overcome, which makes it use in many applications. 2

    該方法的意義是：推廣了雙三次coons曲面的理論與演算法，並對邊界條件進行了簡化改進，可以直接由插值條件獲得邊界條件，從而克服了多元樣條邊界條件難以確定的困難，拓寬了應用范圍。
  16. Derived from the concept and character of the voltage collapse boundary surface, the discussion on the principles of the advancing analysis and the preventive control of the steady - state voltage stability of power system in this dissertation is illustrative, scientifical and precise

    從電壓崩潰邊界曲面的概念與性質出發，論文提出了靜態電壓穩定的預測分析與預防控制新原理。
  17. Especially, in order to assure the smooth connection between the adj acent surfaces, the surface fitting algorithm of interpolating four boundary cur ves and approximating inner scattered data is presented, the surface fitting al gorithm of interpolating four boundary curves and cross boundary derivative v ectors and approximating inner scattered data is also presented

    特別地，為保證曲面間的光滑連接，提出了一種插值于給定邊界曲線且逼近內部散亂數據點的曲面擬合演算法：提出了一種插值于給定邊界曲線及其跨界導矢且逼近內部散亂數據點的曲面擬合演算法。
  18. First, the human body surface is divided into seven parts, and each part is created by the way of using double cubic b - spline surfaces. to attain g1 continuity on the stitching line of two b - spline surfaces, one order tangent condition is applied to the bound of each b - spline surface

    首先，在人體建模過程中本文將人體表面分成七個部分，用雙三次b -樣條曲面模擬每一部分曲面，並在曲面的邊界處定義了一階切矢條件，使兩曲面片在拼接處達到了g ~ 1連續。
  19. The formulation for the error analysis of acoustic radiation problem calculated by the boundary point method ( bpm ) is put forward ; the physical explanation of the boundary point analysis of the acoustic radiation problem is given ; the influence of the particular solution on the calculation stability of the bpm is studied ; the etthanced volume source boundary point method ( evsbpm ) is presented ; a test for the effectiveness of the evsbpm is carried out on the aspects of its calculation precision, calculation speed, calculation stability, adaptation to the geometric shape of vibrating body as well as its ability to overcome the non - uniqueness problem through various examples with different boundary shapes and different boundary value distributions

    第三章導出了邊界點方法分析振動聲輻射問題的誤差估計理論公式，揭示了邊界點方法分析振動聲輻射問題的物理本質；研究了特解場的局部特性對邊界點方法的數值穩定性的影響；改進了現有的特解場構造方法，提出了改進體積源邊界點方法；通過諸多不同邊界曲面和不同邊界量分佈的聲輻射算例，從計算精度、計算速度、計算穩定性、對振動體表面幾何形狀的適應性以及克服解的非唯一性等方面，對改進體積源邊界點方法的有效性進行了考證。
  20. The results indicate that start and end segment of interpolation curve are changed with different boundary conditions. interpolation and approximation of arbitrary data points and ship hull surface modeling based on nurbs is implemented

    研究了nurbs的曲線與曲面的正算、反算演算法及其邊界條件的確定方法，實現了任意點列的nurbs插值與逼近及船體曲面造型。
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