法曲 的英文怎麼說
中文拼音 [fǎqū]
法曲
英文
fa ch-
The waves should be sheared waves for the anisotropic aeo device and longitudinal waves for the isotropic aeo device. geometrical relationships of anisotropic acousto - optic effect in ln crystal and kdp crystals are studied by tangent - match condition. curves of incident angle vs. abaxial angle, diffractive angle vs. abaxial angle, extreme frequency vs. abaxial angle and acousto - optic merit vs. incident angle vs. abaxial angle are systematically gained and the design parameters are also calculated
利用相切-匹配條件法研究了鈮酸鋰晶體及kdp晶體的反常聲光互作用幾何關系，系統地得到了以離軸角為自變量的各參數的計算公式及相應的關系曲線，通過數值分析方法給出了聲光優值隨中心頻率的變化曲線並給出了器件的設計參數。The construction and application of strength measurement curve of abies fabric root system with pull - out method
冷杉根系抗拔法測強曲線的建立與應用They accommodate by greatly changing the curvature of the cornea.
它們由大大地改變角膜曲率的方法來調節。The method of curved lever space rigid frame, a new and practicable numerical method, is based on the utility of reinforced concrete shell structure in practical project and on endogen force analysis of shell structure as this paper extracts
摘要從鋼筋混凝土殼體結構的實際應用出發，對殼體結構內力分析提出了一種新型實用的數值分析方法曲桿空間剛架法。It is not hard to conclude that the theory can also be used to solve the problem of reparametrization of curves and surfaces. the fifth part is the expression of normal curves and surfaces in the form of bsc and bbc. the last part involves the applications of the theory of bsc and bbc curves and surfaces in the field of reparametrization of curves and surfaces and entitative modeling
主要研究bbc函數的構造、表示和性質， bbc曲線曲面的表示方法，曲線曲面的參數方程以及它們的性質和特徵， bbc曲線曲面b zier曲線曲面的關系， bbc曲線曲面的相關演算法；第四部分是tbsc和tbbc曲線曲面理論，涉及tbsc和tbbc函數的概念， tbsc和tbbc曲線曲面的方程及其與b樣條曲線曲面以及b zier曲線曲面的關系；第五部分是常用曲線曲面的bsc和bbc表示；第六部分是bsc和bbc曲線曲面理論在曲線曲面重新參數化中的應用和實體造型中的應用。In this thesis, the surface reconstruction for unorganized points, and the design and implementation of the system for constructing the finite element mesh
本文主要在基於散亂點的三維重建演算法，曲面有限元網格自動生成工具系統的設計和實現等方面進行了研究和探討。The thesis tells surface analysis method including curvature analysis and curve depth analysis that we using in the skin restoring project. in chapter 2, it tells the definition of b - spline curve and surface and the fundamental algorithm - de boor algorithm for points of curve and surface. as to reconstruct surface from ct data, we discuss some basic algorithm and introduce the wrapping skin algorithm
在第二章中，介紹了b樣條曲線曲面的定義及基本演算法- -求曲線曲面點的德布爾演算法；基於ct數據的曲面重構，討論了重構過程中所應用到的基本演算法（如節點插入及消去演算法、曲線的反算方法等） ，並介紹了曲面重構中常用的蒙皮法。Suanifolds with the vanishing normal curvature tensor in locally syetric space
局部對稱黎曼流形中法曲率張量場消失的子流形Changes of the induced normal curvature and the relative sliding coefficient of gears are the important factors
齒面誘導法曲率和滑動系數的改變是重要的影響因素。Because the data mutate on the position that is the edge, the normal curvature on some orientation changes from positive to negative. so it is thought whether some point is judged the edge - point by this character
由於邊緣是圖像上像素發生突變的位置，所以在圖像曲面上某一方向的法曲率值會出現由正到負的變化，故此應用這個性質來判斷曲面上某點是否為邊緣點。By pre - dividing parametric region of the surface and introducing the concept “ maximum absolute normal curvature ” at a point on the surface, the method adopts “ divide and conquer ” approach triangulating the parametric region of the surface piecewise
該演算法通過對曲面的參數域進行預剖分，以及引入曲面上一點處的「最大絕對法曲率」的概念，採用「分而治之」的方法分片對參數曲面的參數域進行三角形網格剖分。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。Basically like “ adaptive approach ”, the method can control triangulation density with respect to the change of normal curvature of the surface generating a small number of triangular facets, and thiny triangles, degenerate triangles and “ cracks ” in 3d space will not occur, but the speed of the algorithm is higher than that of adaptive one
該方法基本上可以像「自適應」方法一樣，根據曲面的法曲率變化來控制三角化剖分的密度，生成的三角片數量較少，並且可以避免在三維空間產生狹長的三角形、退化三角形與「裂縫」 ，運行速度明顯比自適應方法快。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。Tooth surface equations and contact line equations of the involute worm gearing are established according to its machining methodology. meshing characteristics in rigidity condition are studied. these characters include the inductive normal curvature along the contact line on the worm surface, the first and the second limit lines during the engage of the worm gear, and the influence of the intersect angle between the contact line the relative velocity of the worm and the gear on transmission performance
根據漸開線圓柱蝸桿傳動的創成方法，建立了漸開線圓柱蝸桿和蝸輪的接觸線方程式、齒面方程式，分析了漸開線圓柱蝸桿傳動的剛性嚙合特性，如蝸桿與蝸輪嚙合時的誘導法曲率、一類界限曲線、二類界限曲線和蝸桿與蝸輪間相對速度方向和接觸線方向的夾角對傳動性能的影響； 2In the first part of this paper, we use solids theory to get the eos of ionic crystal and metal crystal, and use the datum of hugoniot of many solid materials, and make use of the least - square program to get the born - mayer potential parameters. this parameters can use in the theory calculation of eos
在本文的第一部分，利用固體理論推導了離子晶體和金屬晶體的狀態方程的理論形式，又根據多種固體材料的hugoniot沖擊壓縮實驗數據，運用最小二乘法曲線擬合程序確定出它們的born - mayer勢參數，經驗證這種勢參數完全可以運用於實際的狀態方程的計算中。In the text, differential coefficient method and numerical value differential coefficient method have been introduced for crank slide block machine accuracy analysis, and influence of the fitting clearance of moving pair to component moving error has been given
文章介紹了微分法及數值微分法曲柄滑塊機構精度分析，說明了運動副的配合間隙對構件運動誤差的影響。Then the reconstruction of curved surface of the covering parts was taken for an example, and the emphasis is laid on the identification and extraction method of the characteristic and the boundary, and the reconstruction method of curved surface. meanwhile it was given emphasis to the partition strategy of the data of point cloud, the forward direction design of the process of re, and so on
在此基礎上，以覆蓋件曲面重構為例，重點研究了點雲數據的分塊策略、曲面特徵的識別和提取方法、曲面邊界提取和曲面重構方式，以及反求過程中的正向設計等。It elaborates the contents and requirements of the technique means of fault diagnosis and damage identification for structure, and the present research and application of damage identification for structure with vibration diagnosis technique ; based on the modal parameters, it discusses the theory and technique of the damage identification for structure with the flexibility difference method and curvature modal method, then present the idea of damage identification for structure with flexibility difference curvature method
本文闡述了結構故障診斷的技術手段、結構損傷識別技術的內容與要求，應用振動診斷方法進行結構損傷識別的技術研究與應用現狀；論述了基於模態參數，用柔度差值法、曲率模態法進行結構損傷識別的理論與方法，進而提出了柔度差值曲率法進行結構損傷識別的思想與方法。Using the similarity between plane elasticity and plate bending, this paper successfully fulfils the identification of rolling vector and establishes a general method, the curvature lumping method, to represent the rolling vector by the use of simple displacements vector
利用平面彈性和板彎曲的相似性，本文實現了角卷向量的辨識並得到了用簡單位移向量表示角卷向量的一般方法?曲率堆集法，打通了與有限元通用程序的介面。分享友人