橢圓截面 的英文怎麼說
中文拼音 [tuǒyuánjiémiàn]
橢圓截面
英文
ellipicity section-
In the system, the collimation semiconductor laser - scanned beam scanning two perpendiculars direct of one plane of the measured workpiece at the same time is made. the beams with the dimension information of two perpendiculars direct are processed by the scanning receive system, the high - speed photoelectric transition and electronic data process. two measured results of the diametric directs and ellipse tolerance, etc, parameter, of the turning workpiece on the same plane are obtained by non - contact automatic measurement
在單向激光掃描檢測技術的基礎之上，提出了一種雙向激光掃描檢測系統，其採用激光掃描檢測技術與特殊光學系統相結合，用準直半導體激光掃描光束對被測工件徑向某一截面的兩個相互垂直方向同時掃描，經掃描接收光學系統、高速光電變換、電子學系統和微機數據處理系統，對將攜帶有垂直方向被測量信息的光束進行處理，實現了回轉體工件同一截面兩個垂直方向的徑向尺寸和橢圓度等參數的非接觸自動測量，解決了同時非接觸測量回轉體零件同一截面兩個徑向尺寸的難題，它具有高速，高精度和非接觸自動測量等特點。It is mainly characterized in the triangular - lanceolate leaves which are green but white with dark green reticulation along the midrib and more or less truncate at base ; the flowers are erect on the rachis and half - opened ; the lip is tripartite, glabrous, more or less urceolate in side view ; the hypochile is saccate, ovoid and big while the epichile is relatively tiny, reflexed, undivided and transversely oblong or subreniform
本種之主要特徵為： ?呈三角?披針形， ?面?色，沿中?有白色斑塊， ?基多少呈截形；花直?于花軸，半張；唇瓣呈三段? ，平?無毛，側視時多少呈壺型；基段片囊? ， ?形，巨大，先段片相對微小、反卷， ?再細?而呈橫向橢圓形。With the superimpose model, the formula of the stress calculation of the elbows with elliptic section and nonuniform thickness was proposed in this paper. the formula is versified by the experiment of two elbows
利用疊加模型，提出橢圓截面變厚度彎管承受內壓時的應力計算力學模型，並通過兩支彎管的實驗得到驗證。A new waveguide made of changing a wide wall of a rectangular waveguide to a uniform curved wall is called conformal waveguide. a kind of expression of approximate solution for domain mode of the new waveguide, including symmetric, unsymmetric arc, parabolic arch, hyperbolic arch, elliptic arch, etc., is constructed by using boundary condition of mental waveguide, variational method and boundary element method. by using the equivalence principle, an approximate calculating formula for equivalent resonant conductance of a narrow longitudinal halfwavelength slot cut in the curved wall of the unsymmetric arcrectangular waveguide is derived, and the result is shown. although this solution is approximate, it can solve the problem in designing the slotted antenna of such conformal waveguide
把矩形波導一個寬面外突成均勻曲面構成的新波導統稱為共形波導.利用金屬波導邊界條件、變分法、邊界元素法構造這種新波導中主模場的一種近似解表達式，包括曲面橫截線為對稱、非對稱圓弧，拋物線弧，雙曲線弧，橢圓弧等.然後根據等效原理，推導非對稱圓弧矩形波導曲面上窄的縱向半波長縫隙的等效諧振電導的近似計算公式，給出計算曲線.這種解雖然是近似的，但卻能解決這類共形波導縫隙天線的工程設計The laser power is detected through the pd ’ s movement across the faculous region. when the value of the peak value of laser power is got, the power of the facular boundary points can be found according to definition of the facular boundary such as “ 1 / e ~ 2 ” theory. then the equation of the facular boundary can be made fitting by using the least square method, and calculate the beam divergence at last
採用兩個光電探測器分別檢測光束不同高度上的兩個光斑，在確定光斑中心最大光強值后，根據光斑截面尺寸的1 / e2定義，得到光斑截面邊界點的光強值，並以其為標準判定光斑截面的邊界點，對探測到的邊界點通過最小二乘法進行擬合，得到橢圓光斑截面的方程，根據空間幾何關系求出發散角。A precise solution for torsion of bars with hollow elliptical cross section
一類橢圓截面空心柱體扭轉的精確解Numerical calculation and computer simulation of magnetic field of long straight conductor with ellipse cross - section
橢圓截面長直載流導體磁場的數值計算和計算機模擬When the dimensionless governing parameters exceed some critical value, the bifurcation phenomena in the rotation pipe with rectangular and elliptical will appear and the flow structure becomes more complicated
對于矩形截面和橢圓截面管道，當控制參數較大時，流動會出現分叉現象。Employing perturbation method and numerical simulation, we study the flow in rotating helical pipes including different rotations, different cross sections ( circular, elliptical, annular and square cross section ), and different geometrical structures
採用攝動方法和數值計算方法，研究了處于多種旋轉狀態下、多種截面形狀（圓截面、橢圓截面、環形截面、矩形截面） 、不同幾何結構旋轉螺旋管道流動。The experimental and numerical studies on the two enhanced tubes are performed. the strong multi - longitudinal vortex flow in the aea - tube is induced by alternating change of the elliptical cross - section, and for the ddir - tube, the strong multi - longitudinal vortex flow is
交叉縮放橢圓管是通過橢圓截面的交叉變化誘導產生強烈的二次流和多縱向渦流，而不連續雙斜向內肋管則是通過不連續的雙斜向內肋對的作用形成強烈的多縱向渦。These stud " can be concluded as following : on the basis of the bhw - 35 steel p - s - n curve and its da ' dn growth law the method of low - cycle fatigue life evaluation of 401 t / h boiler was proposed. and a mechanics model was suggested for calculating the stress of internal pressure suffering elbow. with the elbow fatigue test, a method of evaluation the fatigue growth life of pressure suffering elbow is recommended ; and the elementary use of damage mechanics on the fatigue life evaluation of the boiler drum
本文創新點為：在bhw - 35鋼的p ? s ? n曲線及da / dn擴展規律的試驗研究基礎上，提出了410t / h鍋爐汽包的低周疲勞壽命分析與預測方法；建立了一種橢圓截面變厚度彎管承受內壓時的應力計算力學模型，通過壓力彎管的疲勞試驗，本文推薦其低周疲勞擴展壽命預測方法；將損傷力學應用到鍋爐汽包疲勞壽命預測做了初步的探索。When f is about fr, for curved pipes, the secondary flow appears eight vortexes for annular cross section and four for circular and four or six for elliptical ; for helical pipe, the secondary flow appears as a loop flow for annular and circular cross section, and a saddle flow for elliptical cross section
當f在fr左右時，對于彎管，環形截面上存在八個渦，圓截面上存在四個渦，橢圓截面上存在四個或六個渦；對于螺旋管，圓截面和環形截面上二次流表現為環流，橢圓截面上表現為鞍流。Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed
本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上，以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面（圓截面、橢圓截面、環形截面、矩形截面）旋轉曲線管道內充分發展流動的流動結構和傳熱特性（包括耦合對流傳熱特性）以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析，詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創新性成果。The cross section of the fiber is full of oval space, which enables the product to absorb and evaporate moisture in a flash
其橫截面布滿橢圓形的空隙，可以在瞬間吸收並蒸發水份The fifth chapter investigates the dynamic relationship between geometry and architecture based on ellipse ' s geometric character, and analyzes ellipse architecture ' s characters in symbolism, dualism, diversity and unity these four facets. in the sixth chapter, taking ellipse architecture as examples, i try to explore the relationship between the more general geometry ' s purity and architecture ' s complexity, and build the foundation for future exploration of geometry ' s purity. in the seventh chapter, using typology contrast methodology, i analyze two architects with quite different design theories - tadao ando and koolhaas " adoption of ellipse, and taking position relationship as clue, combine ellipse and other geometric forms together to generalize the effect of geometry ' s purity to architecture ' s complexity in usual situations
第四章從歷史和現代兩個方面展開了大量對橢圓形式在建築中應用的個案和實例的研究與對比，探討了橢圓形式在歷史上意義的變遷；第五章以橢圓的幾何特性為立足點，研究了橢圓幾何- -建築之間的動態關系，從標志性，二元對立，多樣和統一四個方面分析了橢圓建築的特點；第六章以橢圓建築為例，嘗試探討了更一般的幾何的純粹性與建築的復雜性的關系，對幾何純粹性意義的挖掘為進一步的研究提供基礎；第七章採用了類型對比的研究方法，分析了安藤忠雄和庫哈斯兩位設計哲學截然不同的建築師對橢圓形式的使用；另外，以位置關系為線索，將橢圓和其他的幾何形式結合起來，總結了一般情況下幾何的純粹性對建築復雜性的作用。Based on the ansys finite element method software, structure of the new type elliptical cam is researched, effect of the flexible - hinged structure ’ s cross - sectional thickness and the magnitude of pre - tightening force to the performance of elliptical cam is analyzed, using the analysis result, flexible - hinge structure of the elliptical cam is designed in reason
用ansys軟體對新型橢圓凸輪進行了結構有限元分析，分析了柔性鉸鏈最小截面厚度和預緊力的大小對橢圓凸輪性能的影響，根據有限元分析結果，合理設計了橢圓凸輪的柔性鉸鏈結構。And then the solutions for displacement mode of scattering wave at far field and scattering cross - section are provided at the interface cavity when it is ellipse and diamond
在求解了界面孔對sh波散射的近場解的基礎上，進一步研究了其遠場特性。給出了界面橢圓孔和方孔的遠場位移模式和散射截面的解答。The project is used which measuring instrument moved along axis and the measured quartz tube rotated and fixed ort a position. according to data of outer diameter and wall thickness of different sections and positions, it can calculate the parameters of section area, ellipticity, wall thickness error, flexibility and so on
系統將激光掃描綜合測量儀、直線與回轉伺服控制系統和計算機有機地結合，採用測量儀軸向移動，而被測石英管在固定位置上轉運而不移動的測量方案，根據測量出多個截面和多個不同位置的外徑和壁厚數據，計算出被測石英管的截面積、橢圓度、偏壁度、彎曲度等其它參數。When the beam waist along the y direction of blue - detuned segb is the same as that of the sgb, due to a smaller cross surface, the absolute intensity distribution of the blue - detuned segb is larger than that of the sgb with the same incident laser power
當橢圓高斯光束的w _ y與gb的光腰w取相同大小時，隨著橢圓高斯光束w _ x的逐漸減小，橢圓高斯光束的截面積將逐漸變小，而其光強將逐漸增大。First, with the variational method, the variational lower bounds of the characteristic impedance are respectively computed of the conformal coaxial lines with circular, regular polygonal and elliptical cross - sections. then the optimal variational lower bound of the conformal coaxial line with a square cross - section is obtained
本文首先用變分法求解了截面為圓形、正多邊形和橢圓形的共形同軸傳輸線的特性阻抗的變分下界，得到了截面為正多邊形的共形同軸傳輸線特性阻抗的變分最優下界。分享友人