橢圓弧 的英文怎麼說
中文拼音 [tuǒyuánhú]
橢圓弧
英文
elliptical arc-
They not only inherit the advantages of bezier curves and b - spline curves, also can be used to represent straight lines precisely and some remarkable transcendental curves precisely, such as circular arc, ellipse, cardioids and twisted pair line etc. especially, the uniform t - b - spline curve of three degrees is smoother than b - spline curve and c - b - spline curve of the same order
此外由於它們還具有三角函數的優點，故既可以精確表示直線段、二次多項式曲線段又可以精確表示圓弧、橢圓弧等二次曲線以及心臟線、雙紐線等超越曲線。特別地， 3次均勻t - b樣條曲線曲面比同階均勻b樣條（ c - b樣條）曲線曲面具有更高的光滑度。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This provides an extremely lightweight and strong racing machine, where the geometry of the frame is tailored by working the tube sets to create the perfect ride. at hang lun we take the design, fabrication, and material selection process very seriously, creating the best product possible for the intended application ; making bikes go fast
為了使車架的設計更加完美並滿足輕量化幾何學結構空氣動力學的要求，管材的加工採用專用的設備保證其精密的尺寸，管形被設計加工成橢圓水滴錐管垂直橢圓等各種形狀，再經過工藝要求很高的氬弧焊接和外表面的手工打磨處理。Taking practical situation of this project and much engineering experience into account, the scheme with axle golden section elliptical arc surface is proposed through comparing nine optimization schemes with model test
結合工程實際和以往經驗，比較了9種進水口曲線型式的試驗結果，確定了長短軸黃金分割比的橢圓弧面的方案。The off - line program system based on cad / cam for dispensing robot is designed on the computer. in the module of trajectory planning, preliminary discussion is done about the shortest loop path and an algorithm of solving this problem is provided ; in the module of back procedure, dda ( digital differential analyzer ) is adopted in line, circle and ellipse interpolation. at last the protocol transferring program data to robot from off - line system is analyzed
在離線編程的系統的設計中，實現了cad的建模、點膠軌跡的程序示教、工藝參數編輯、軌跡規劃、後置處理等功能，並在規劃模塊中針對平面內不規則排列點進行點膠的軌跡規劃進行了初步探討，採用圖論的方法，給出滿足實際要求且演算法復雜度較小的最短閉合迴路的程序演算法;在離線編程系統的後置處理模塊中，介紹了直線、圓弧、橢圓弧的dda插補方法以及脈沖分配不均勻的改進方法;最後對通信協議的制定進行了分析。Object has methods to draw points, strings, lines, arcs, ellipses, and many other shapes
對象有繪制點、字元串、直線、圓弧、橢圓和許多其他形狀的方法。Whether there is damage in composite material or not is determined by four methods : the damage detection method based on extreme value theory, the damage detection method based on ellipse technique, the damage detection method based on four points arch technique and the damage detection method based on nerve net
研究四種損傷定位方法的原理，即:基於極值理論的損傷定位方法、基於橢圓技術的損傷定位方法、基於四點圓弧定位法的損傷定位方法、基於神經網路技術的損傷定位方法。An ellipse is defined by its bounding rectangle ; an arc is a portion of an ellipse defined by a starting angle and a sweep angle
橢圓是由其邊框定義的；弧是橢圓的一部分，由一個起始角和一個掃描角定義。Appends an elliptical arc to the current figure
向當前圖形追加一段橢圓弧。The following example creates a path that has one open figure an arc and one closed figure an ellipse
下面的示例創建包含一個非閉合圖形（弧）和一個閉合式圖形（橢圓）的軌跡。The starting point of the arc is determined by measuring clockwise from the x - axis of the ellipse at the 0 - degree angle by the number of degrees in the start angle
弧線起始點的確定方法是：從橢圓x軸（ 0度角）開始順時針測量起始角度的度數。分享友人