面曲率 的英文怎麼說

中文拼音 [miànqūlǜ]
面曲率 英文
curvature of face
  • 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...
  • 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...
  • 率 : 率名詞（比值） rate; ratio; proportion
  1. This paper deals with the regular curves in a riemannian manifold with constant sectional curvature and the affine starlike curves in r2, r3 and r4

    本文研究了具有常截面曲率的黎曼流形中的正則曲線及二、三、四維空間中的仿射星形曲線。
  2. Results show that the influence of mainstream reynolds numbers on heat transfer coefficience is little and the heat transfer coefficience raise with the increase of reynolds numbers. the influence of the position of holes on heat transfer coefficience is complex and correlate with the mainstream speed and the balde surface curvature. and the influence of blowing ratio on heat transfer coefficience is more great ( especially to stator ), and show a complex relation to mainstream reynolds number and the position of holes

    實驗結果表明，不同孔位出流的換熱由於孔排下游表面來流速度及葉片表面曲率的不同而有不同的規律，而主流雷諾數對葉片表面特別是壓力面和前緣區域的換熱系數比的影響較小，吹風比對換熱系數影響較大（特別是導葉） ，並且隨氣膜孔位置和來流雷諾數的變化而情況復雜。
  3. What changes are necessary when a spherical curvature is introduced in the substrate ?

    當一個球面曲率引入基底時需要有什麼改變？
  4. According to the differential geometry theory, the principle curvatures and principle relative curvature of the spur gear and the fg in line contact and point contact, the tooth surface relative speed and the tooth contact interface are analyzed, whose distributing on the tooth surface are visualized by computer

    在齒面的幾何特性研究中，利用微分幾何的原理分析了圓柱齒輪和面齒輪的齒面曲率、線接觸和點接觸面齒輪傳動的主誘導法曲率以及嚙合過程中齒面的相對速度和接觸區域計算問題，並獲得有益的結論。
  5. The convergence of error brought about by the curvature of earth's surface obviously has no counterpart in free space.

    地球表面曲率產生的誤差是收斂的，顯然，在自由空間沒有類似的情況。
  6. In this paper the direct iterative surface curvature ( disc ) design method is presented for designing airfoils at transonic speeds

    本論文採用直接表面曲率迭代方法（ disc ）進行跨聲速翼型設計。
  7. With the phenomena of dropping flow, backflow and secondary flow effected by circulation and surface curvature, the centrifugal pump ' s inner flow is very complicated 3d flow. therefore, the centrifugal pump inner flow is one of the difficult problems both in testing research and numeric computation

    離心泵葉輪的內部流動是很復雜的三維紊流流動，同時由於受旋轉和葉片表面曲率的影響還拌有脫流、迴流及二次流的現象，是流體工程中較難的試驗研究和數值計算問題之一。
  8. At the same time, the curvature of the triangles is introduced to minimize the number of self - intersections detection of the cloth

    同時，在自碰撞檢測中，作者利用三角形表面曲率簡化計算。
  9. Furthermore the influence of the interface curvature and wave mode conversion on the inspection filed was still analyzed by the author. the results were in good agreement with the general rules of ultrasonic nondestructive testing

    作者還進一步分析了界面曲率和波型轉換對超聲檢測的影響，理論分析符合超聲檢測的一般規律。
  10. Abstract : numerically solving equations governing the variations of the beam size and the curvature of wave front in the logarithmically nonlinear media ( lnm ), the propagating characteristics of gaussian beams have been described in detail

    文摘:根據對數型非線性介質中高斯光束的束寬和波陣面曲率變化所滿足的耦合方程，採用數值計算對高斯光束的傳輸特性進行了詳細的分析。
  11. Curvature measuring apparatus of arbitrary shape curved surface

    任意曲面曲率測量儀
  12. According to the authors ' authorized and accepted patents for invention, the working principle, structure, measuring method and accuracy analysis of the curvature measuring apparatus of the arbitrary shape curved surface were introduced

    摘要以作者的授權發明專利和受理發明專利為主要依據，介紹了「任意曲面曲率測量儀」的設計原理、結構、測量方法和精度分析。
  13. The maximum designed compression ratio of two types of special - shaped columns is presented with two methods of curvature ductility and big - small eccentricity failure. and the advantages and disadvantages of the designed compression ratio determined by the two methods is compared to

    用截面曲率延性和大小偏心臨界破壞點兩種方法確定它們的軸壓比限值，並比較了兩種方法確定軸壓比限值的優缺點。
  14. As a result, ( i ) let k ( x ) be the function assign to each point x of m the infinimum of the sectional curvatures of m at that ponit, if k ( x ) satisfies, then m is totally umbilical. ( ii ) let q ( x ) be the function assign to each point x of m the infinimum of the ricci curvatures of m at that ponit, if q ( x ) satisfies q > 1 / 4 ( n - 2 ) ( c + 4h2 ) - 1 / 4nc, then m is totally umbilical, ( iii ) let a be the square length of the second fundermental form, if satisfies, then m is totally umbilical

    ） ）中具有非零平行法平均曲率向量的緊致全實偽臍子流形m ~ n ，得到了（ ? ）如果m ~ n在其點x的截面曲率的下確界函數k （ x ）滿足條件：則m ~ n是全臍的（ ? ）如果m ~ n在其點x的ricci曲率的下確界函數q （ x ）滿足條件：則m ~ n是全臍的。 （ ? ）如果m在m中的第二基本形式h長度的平方滿足條件：則m ~ n是全臍的。
  15. It can be concluded that the performance differences between the plate membrane and the hollow fiber membrane can be attribute to difference of the stresses in the membranes when they were under pressure and the difference of the strain caused in the membrane, besides the possible reason that the surface curvature difference between a plate substrate and a hollow fiber one may cause structure difference in the dense functional layer when coating. the stresses in a hollow fiber composite membrane under an outside pressure are quite different from that in a plate one in that they exert on the hollow fiber in both the radial and circular directions, and the compress strain of the hollow fiber is thus much more complex, which may cause the top layer crinkle and a decreased salt rejection

    分析認為造成平板復合膜（ ）和中空纖維復合膜（ ）性能差異的主要原因，除了平板基膜與中空纖維基膜因表面曲率不同可能引起在塗覆時形成的緻密功能層結構上的差異之外，由於中空纖維膜受外壓時，膜內部承受的應力形式與平板膜不同，會同時在徑向（膜厚度方向）和環向（膜面內方向）兩個方向產生壓應力，因此，所發生的形變也較為復雜，可能造成表面復合層的起皺或脫落，引起脫鹽率下降。
  16. In the second part, we investigate the compact submanifolds m with the parallel isoperimetric section in the real space forms rm ( c ) and prove that if there exists a parallel isoperimetric section on m, and the sectional curvature of m is always greater than zero, then m is contained in a hyper - sphere ; and get that the gauss curvature of the compact surfaces m with constant mean curvature in constant curvature space r4 ( c ) is always greater than zero, then m is a totally geodesic surface or a sphere, where an isoperimetric on m means a unit normal vector field defined globally on m with m1 ( ) = constant

    （ 2 ）研究了實空間形式r ~ m （ c ）中具有平行等參截面的緊致子流形m ，證明了具有一平行等參截面的子流形m ，如果m的截面曲率恆正，則m包含在r ~ m （ c ）的一個超球面內；對于常曲率空間及r ~ 4 （ c ）中具有常平均曲率的緊致曲面m ，如果m的高斯曲率處處大於零，則m或為r ~ m （ c ）中的全測地曲面或為一球面。這里m上的等參截面是m上整體定義的單位法向量場，使得m關於它的平均曲率m _ 1 （ ）是常數。
  17. When calculating the cost of edge collapse, we consider the influence of edge length and surface curvature. and, the position of the new vertex is selected from the veytexes of the edge collapsed, this can not only preserve the initial model shape, but also reduce the calculation of cpu and meet real - time rendering of virtual environment

    在折疊邊的代價估計中，均衡考慮了多邊形邊的長度和多邊形表面曲率影響；折疊邊的頂西北工業大學博士學位論文點位置從折疊邊的頂點中選取，既有助於保留了初始模型的形狀，又減少運算量，滿足快速繪制的需求。
  18. 6. the melting of the grain boundary is the reason of the semi - solid grain globalization, and its control factors were the atomic diffusion velocity and the liquid - solid interface curvature

    6 、半固態晶粒球狀化的基本原因是晶界熔化，其控制因素是因液界面處原子擴散遷移的速度和界面曲率。
  19. The sphere images of 10 balls were captured at 3 different positions as the flat cards. it is proved that curvature of object have no influence on hue distortion in this machine vision system, basically. so distorted hue of balls can be corrected by the model of corresponding position flat cards directly

    5 、分別在上述三個位置採集10種顏色的球面圖像，驗證了在本研究所用機器視覺系統內，物體表面曲率對色度失真基本沒有影響，因此，對于球面物體的色度失真，可直接應用相應位置的平面色卡色度失真校正模型進行校正。
  20. This means that the dielectric property changes with height and allows a slight increase in the speed of a radio wave as we move upwards through the atmosphere. this in turn means that if a radio wave moves away from the earth at an angle less than 90 degrees, then the upper part of the wave travels faster than the lower part. therefore even under normal conditions this can in effect bend, or refract, the wave back down to earth

    其中一種顯著的現象是：在一定的氣象條件下，在大氣邊界層尤其是在近地層中傳播的電磁波，受大氣折射的影響，其傳播軌跡彎向地面，當曲率超過地球表面曲率時，電磁波會部分地被陷獲在一定厚度的大氣薄層內，就好像電磁波在金屬波導管中傳播一樣，稱為大氣波導傳播，形成波導傳播的大氣薄層稱為大氣波導層。
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