曲線族 的英文怎麼說

中文拼音 [qūxiànzú]
曲線族 英文
assemblage of curves
  • 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...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 族 : 名詞1 （家族） clan 2 （古代的一種酷刑） a death penalty in ancient china imposed on an offender ...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. The demonstration of the conic section is an envelope of family of straight lines

    圓錐曲線是直線族的包絡的證明
  2. According to the restriction of the generatrix line, bertrand surface can be constructed with the bertrand curve with broad sense group

    按照母線的約束，形成廣義白川德曲線族，進而構造出白川德曲面。
  3. The directrixes of the in former two transmissions are the loxodrome and the geodesic on the pitch cones, that of the latter is an equal - pitch line along the direction of straight generatrixes in the hyperboloid surface, also is the vertical trajectory of the straight generatrixes

    前兩種傳動形式的準線分別為節錐面上的斜航線與測地線，後者的準線為單葉雙曲面上沿直母線方向的等螺距曲線，且為直母線族的正交軌線。
  4. 2. doppler frequency shifting and curve fitting differential methods for measuring velocity are analyzed and compared. the least - squares curve fitting methods based on power functions and orthogonal functions are analyzed and compared

    2 .對測量速度的兩種方法，多普勒頻移法和曲線擬合微分法作了分析和比較;對以冪函數族和以正交函數族為基底的最小二乘曲線擬合法作了對比分析。
  5. 3. by using the dual concept between points and planes in 3d projective space, two classes of developable surfaces on c - b zier curve are constructed. the former is as a envelope of one - parameter plane family

    Zier曲線上可展曲面造型的方法：一個是作為單參數平面族包絡面的可展曲面構造，另一個是作為脊線的切線曲面的可展面構造。
  6. Equations of mesh, shorting contact line, undercutting limit line, meshing limit lines and the existence conditions, angle between the direction of relative speed and the direction of contact line, induced normal curvature about every point on the contact line are established. moreover, the paper also theoretically analyzed the error of the grinded gear surface. on the basis of the theory, the computer program is worked out to automatically produce the contact line and the boundary curves of mesh. analysis of meshing circs under different parameters can be done so that we can gain the best process condition

    首先對漸開面二次包絡理論進行了深入的探討，推導出了兩次嚙合的嚙合方程式、瞬時接觸線方程式、根切界限線方程式、嚙合界限線的方程式及其存在條件，相對運動速度方向與接觸線方向的夾角及接觸線上各點的誘導法曲率；此外，還對磨齒后工件的齒面誤差進行了理論分析；並在理論基礎上編制了相應的計算機程序，自動生成接觸線族及嚙合界限線，對不同參數條件下的嚙合情況進行分析，可以使工藝條件達到最佳狀態；最後研究了磨齒裝置，設計了磨齒機的傳動系統。
  7. An algorithm for connecting non - intersecting line segments into a simple polygon

    一種用射影線束族生成曲線的方法
  8. The topologies family include single four - quadrant power switch mode, push - pull mode, half - bridge mode, and full - bridge mode circuits. taking full - bridge mode circuit as an example, the operational mode, steady principles, transient voltage feedback control strategy of the converter are investigated. the output characteristic curve, the design for the key circuit parameters and the reference sinusoidal circuit which is synchronous with the signal of n or 1 / n times line voltage frequency are given

    該電路拓撲族包括單四象限功率開關式、推挽式、半橋式、全橋式電路，以全橋式電路為例分析研究了這類換器工作模式、穩態原理與電壓瞬時值反饋控制策略，給出了變換器的外特性曲線、關鍵電路參數、與電網電壓n倍頻或n分頻信號同步的基準正弦電路的設計。
  9. The 11th pacific conference on computergraphics and applications, 2003, pp. 90 - 101. 24 hartmann e. parametric g n blending of curves and surfaces

    給定空間曲線和正值函數，由它們定義的所謂管道曲面是由一族中心在曲線上以為半徑的球體生成的包絡。
  10. 4. through our research, the whole measuring scheme is finalized for pulse - counting method with analog intervene chosen to measure distance, the differential coefficient method based on the least - squares curve fitting based on power functions chosen to measure velocity and qd optical spot location method chosen to measure angle

    4 .通過研究，最終確定了以模擬插入脈沖計數法測距，冪函數族基最小二乘曲線擬合微分法測速，四象限探測器（ qd ）光斑定位法測角的脈沖激光雷達整體測量方案。
  11. First according to the fact that tangential components of the evolution do not affect the geometric shape of the evolving curves, we introduce the evolution equation of geometric quantities for the general planar curves. then we describe the work of gage - hamilton briefly. last we consider a special curvature flow of curve which evolves with speed function of the principal curvatures along the inner norm and show that convexity of the curve is kept and its length and area are contracted if the initial closed curve is smooth and convex. so the final shape of the curve will be a point in finite time

    首先根據曲線在切向分量上發展是不影響曲線的發展形狀，我們引入了曲線的一些幾何變量的發展方程；其次我們簡要地回顧gage - hamilton研究曲線發展的一般步驟；最後我們考慮沿曲線的內法線以曲率的函數為發展速度的一類特殊的曲線族，證明了在初始曲線為凸的閉平面簡單曲線條件下，曲線將保持凸的，並且它的面積和周長將同時收縮，並在有限時間內成為一個點。
  12. The emphasis of the next two chapters are laid upon the two new families of the generalized ball bases which are introduced by wu hongyi, i. e., said - bezier type generalized ball ( sbgb ) bases and wang - said type generalized ball ( wsgb ) bases, the curves constructed on these bases include the bezier curve, the said - ball curve, the wall - ball curve and some intermediate curves

    接下來的兩章主要介紹了鄔弘毅所提出的兩族廣義ball基： sbgb型基函數和wsgb型基函數，用這兩族基函數構成的廣義ball曲線，不僅包含了b zier曲線， sai - ball曲線和wall - ball曲線，還包含若干介於這些著名曲線之間的中間曲線。
  13. Oscillation characteristic family

    振蕩特性曲線族
  14. According to the analysis, the 3d interference images are hyperboloidal beams and the 2d interference images are hyperbolic beams

    同時也分析出三維干涉圖像為雙曲面族，以及二維干涉圖像為雙曲線族的圖像特徵。
  15. Family of oscillation characteristics

    振蕩特性曲線族
  16. As a member of the ethical, legal and social implications working group advising the agencies on human genome research, duster urged the nih and the department of energy to challenge the bell curve, the 1994 best - seller that argued that race correlated with intelligence

    達斯特身為倫理、法律與社會涵意工作小組的一員，負責督導人類基因組研究；該小組要求美國國家衛生研究院與能源部質疑1994年的暢銷書《鐘形曲線》 ，因為該書主張智力與種族有關。
  17. The latter is a tangent surface with c - b zier curve as spine curve

    Zier曲線上單參數平面族與控制平面的關系。
  18. Orthogonal families of curve

    正交曲線族
  19. Family of half - curves

    半曲線族
  20. In this model both the torque - current - angle data and the linkage - current - angle data are used to represent the nonlinear characteristic of srm, all the data required are acquired by data interpolating. a method based on experiment is presented subsequently to get the linkage - current - angle data

    該模型以轉矩?電流?轉角數據以及磁鏈?電流?轉角數據來描述sr電機的非線性特徵，所需的中間數據通過數據插補得到，隨后研究了一種通過實驗方式來獲得sr電機非線性磁鏈特性曲線族的方法。
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