點曲面 的英文怎麼說
中文拼音 [diǎnqūmiàn]
點曲面
英文
point surface-
Rely on goldmine, see all one can. for the high quality, goldmine traffic appliance industrial co, ltd, which manufactures professionally series of outer - and inner rearview mirrors of plane, spherical, bifacial, wide angle, curved surface, wide sight and prism and so on, which functions has kinds of manual, electromotive, automatic folding, defrosting and demisting styles to medium or top grade cars
瑞安市光得明交通電器有限公司以「依光得明盡覽無余」的高品質特點而專業生產中高檔商務車轎車手動電動自動折疊除霜除霧自動除霜除霧及各種平面鏡球面鏡雙曲鏡廣角鏡曲面鏡博視鏡棱鏡等系列外內后視鏡。I can see a point, a circle and a camber
生:有一個點,有一個圓,還有一個曲面。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。The tem shows lots of nano silica particles circumfuse on the surface of the micro fe particles after the micro fe coated by silica. the sem analysis shows the same result. the vsm shows the micro fe particles have almost no remnant magnetism and coesive. the saturation magnetization decrease with the feed content of teos remenant magnetization and coesive are little
隨著teos的投料的增加,材料飽和磁化強度呈下降趨勢,微米粒子磁化曲線通過原點,表面包裹后,剩磁與矯頑力變化很小對于微米鐵粉,其磁疇變化較快,沒有剩磁與矯頑力。In the course of working, , the plow will make use of the shuttling method so that it can dig alternately either on the left or on the right. compared to the unilateral plow, it can improve the productivity because it can help leave off the soil 、 take from the consumed energy and reduce the empty journey. to meet the requests above, we will use a remote cylinder with both a small cubage and double functions, approximately designing the plow to be columniform and symmetric. after the experiment for a period in the field, we found that the most frayed areas had happened at the places of both plow shank and share and at the same time the base of the remote cylinder had ruptured suddenly
與單向犁相比,其優點在於:耕地無開、閉壟,地表平整,降低了耕后整地的能量消耗,減少了地頭的空行程,因而大大提高班次生產率。為了滿足犁體梭式作業的要求,我們採用了一隻小容積雙作用的液壓油缸;同時對犁壁曲面的形狀採用了近似圓柱形的對稱設計。但經過一段時間的田間試驗,我們發現:該犁犁胸部分的犁脛和犁鏵上的犁尖在工作中磨損較為嚴重;主犁梁和油缸缸體的連接部分(即油缸底座)突然發生了斷裂,造成整個犁體無法正常工作。The method, firstly, grids the precipitation amount by conicoid, then judges and traces isoline and brings forward a way of how to avoid connection uncertainty of isoline
該方法首先用二次曲面對不規則站點雨量進行格網化,然後在格網上對等雨量點進行判斷、追蹤以及在追蹤過程中如何消除追蹤的二義性。As it can be expressed easily by argument equations, we use the conicoid as the criteria of points " classification. based on the point ' s normal and the adjacent field, corresponding to the conicoid equation such as plane, ball and cylinder, we search the points that fit the equation along the adjacent field. using this method, we realized the automatic classification of unorganized points
本文採用了可以比較方便地用參數方程表示的二次曲面作為數據點的分類標準,根據點的法向量以及其鄰域結點的各種屬性,對應于平面、球面、柱面等二次曲面,依據曲面方程的特點,從起始點開始沿鄰域深度優先遞歸尋找符合方程的數據點,實現了散亂數據點的自動分類。This paper is original from " on - line measuring system for cragged surface on special working conditions ", supported by the science and technology research foundation of anhui province. this project mainly researches on the technique of measuring geometric parameters on train wheel profile applying stereovision measurement technology
本論文所研究的課題來源於安徽省重點科研項目「特殊工況異形曲面在線檢測系統」 ,本項目主要研究如何應用計算機視覺測量技術來檢測火車車輪輪廓幾何參數。This paper is from the " on - line measuring system for cragged surface on bad conditions ", supported by the science and technology research foundation of anhui province. this project is mainly on the research of measuring geometric parameters on train wheel profile applying stereovision measurement technology
本論文所研究的課題來源於安徽省重點科研項目「特殊工況異性曲面在線檢測系統」 ,本項目主要研究如何應用計算機視覺測量技術來檢測火車車輪輪廓幾何參數。Therefore, the method of screen spreading is presented herein with the following basic feature : taking the surface of the perpendicular line at the end of the distortion and bottom as the datum plane, move the controlling point of every distortion part to the datum plane with the principle of changeless of geometry size, and then the spreading is formed
為此提出一種屏幕展開方法,此方法的基本要點是,以扭曲面末端垂直線和底部起坡線所在的平面為基準面,將扭曲面各分塊的控制點按幾何尺寸不變的原則搬到基準面,即可形成展開圖。As it is impossible to machine the helicoid gear surface with large module and a few teeth by gear generating, a four - axis milling was developed in this paper
摘要針對大模數少齒數螺旋齒輪的加工特點,結合漸開線和擺線的性質,利用微分幾何工具計算出該類曲面的法矢,作為選取球頭銑刀半徑的依據。This three hybrid type pmts possess such advantages as : simple structure, good dexterity high machining precision, high machinillg speed, position decoupling wth orientation, easy nc programming et al, can meet the need of numerical colltrol machining for large pwts with complex wes
這三種混聯結構並聯機床具有結構簡單、加工靈活、加工精度高、加工速度快、加工工藝性好、位置與姿態解耦和數控編程方便等優點,可以滿足大型具有復雜曲面類零件的多軸聯動數控加工的要求。Chapter 1 deals with the numerical simulation method. chapter 2 deals with the monte carlo methods. the monte carlo integration that the domain of integration is curved or complex connected curved polyhedron and the integrand has singular points is discussed in this chapter
第二章討論了用montecarlo數值模擬方法求積分區域為曲面體和積分區域為復連通曲面體的情形,且被積函數有奇異點。4. algebra hyper surface neutral network is a kind of expanded perceptron model
重點研究了一類感知器推廣模型? ?代數超曲面神經網路模型。An optimization disposal algorithm of edges in generating quadrangular meshes based on non - closing cloud data is proposed
摘要提出了一種非封閉曲面的海量空間數據點四邊形網格劃分過程中的邊界優化處理演算法。Using the normal and neighbor relationship, classification of scattered data points is realized according to the quadric surface. the typical algorithms of surface reconstruction from 3d scattered data points are introduced, and then we discuss the current surface tessellation algorithms about their adaptive range, low efficiency
本文首先對三維散亂數據點重構曲面的典型演算法和現有的曲面網格劃分演算法進行了分類與比較,針對現有的散亂點曲面重建演算法存在的低效率和局限性問題提出了相應的解決方案。Surface reconstruction method based on fea surface of 3d unorganized points is divided into four modes according to the special features of points on surface in this thesis
( 2 )基於有限元分析的曲面重構方法根據離散數據點的不同特點,本文將離散數據點曲面分成四種模型。Surface modeling approach for free - form machining based on the cubic spline function
基於三次樣條的離散點曲面構建演算法Eight - nodded curvilinear quadrilateral isoparametric shell element is used both in the fem and in the bem
在有限元方法和邊界元法中均採用了八結點曲面四邊形等參單元。By means of discussing plane symmetry that relates to point, curved surface and curve in a three - dimensional space, this paper gives a method to study point 、 curved surface 、 plane symmetric point on a curve 、 symmetric curved surface and symmetric curve equation
摘要討論了三維空間中,點、曲面、曲線關于平面的對稱問題,從而給出了求點、曲面、曲線關于平面對稱的對稱點、對稱曲面、對稱曲線方程的方法。分享友人