統一曲面系 的英文怎麼說

中文拼音 [tǒngyīqūmiànxì]
統一曲面系 英文
homaloidal surfaces
  • 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
  • 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...
  • 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...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 統一 : 1. （聯成整體） unify; unite; integrate 2. （一致的; 整體的） unified; unitary; centralized
  1. The interface and concrete operations of the prototype system and results of machining features recognition are illustrated by examples, in which there is a typical shaft, a 2. 5d part without conicoid and a 2. 5d part with conicoid

    分別以一個典型的軸類零件，一個不具有二次曲面的2 . 5維零件，以及一個具有二次曲面的2 . 5維零件為例，介紹了原型系統的界面和加工特徵識別的具體過程及識別的最終結果。
  2. The following is main research work : 1. geometry characters ( such as tangent plane and normal plane etc. ) and differential coefficient characters are theoretically analyzed in detail, then the intersection differential coefficient system model for trace is constructed

    在理論上，系統地分析了交線的幾何特徵（如切平面和法平面等）和微分特徵（如曲面的一階基本齊式等） ，建立了交線的微分系統跟蹤模型，從而為今後進一步研究求交問題提供了一個可行的途徑。
  3. In the thesis, the general situation of the domestic and abroad developments in the field of the numerical control interpolation algorithm for aspheric surface machining is reviewed firstly, for the poorness of recent numerical control interpolation algorithm, an numerical control interpolation algorithm that based on the genetic algorithm ( ga ) and neural network ( nn ) is introduced

    在數控系統中，它是生成加工軌跡的一個最基本的子程序，在很大程度上決定了數控機床的加工精度和最大進給速度。本文首先綜述了國內外非球曲面超精密加工中所運用的插補演算法的發展概況。
  4. Some typical schemes are implemented via this data structure ( loop subdivision, catmull - clark subdivision, do - sabin subdivision, hybrid subdivision, adaptive subdivision ). the technique of opengl is utilized to accomplish some basic operations, such as rotation, zoom, pan, pick and so on. finally the algorithms studied by our research group are integrated, and a prototype system based on subdivision surface is developed

    （ 4 ）改進了適合於曲面細分的的翼邊數據結構，並實現了典型的細分演算法（ loop細分、 catmullclark細分、 doo - sabin細分、混合細分、自適應細分） ；採用opengl技術實現了旋轉、縮放、平移、拾取等圖形的基本幾何操作；最後將本課題組研究成果加以集成，開發了一個基於細分曲面的原型系統。
  5. The information in existence is collected and the traditional theatric buildings of zhejiang were investigated on the spot, so as to comprehend them once more, the development process of traditional theatric buildings was summarized in the article. the influence between traditional theatric buildings and traditional drama, religion and human environment, and architectural characterization of zhejiang traditional theatric buildings was dissertated in the article. additionally, as a theatric building, its acoustical characterization is important, so the acoustical condition of the traditional theatric buildings was analyzed in the article

    論文旨在通過對現有資料的收集，以及對浙江古戲場的現場調研，重新認識中國傳統戲場，敘述了傳統戲場的發展沿革，戲場建築文化與傳統戲曲、宗教、人文文化的關系淵源，以及浙江傳統戲場的建築空間與裝飾特色，再者，戲場作為觀演建築，其聲學狀況也是十分重要的一個方面，本文從觀（聽眾區）與演（舞臺）兩方面，對傳統戲場的聲學狀況進行了分析闡述。
  6. In the thesis. reading the iges file - 3 - and all the geometry entities and annotation entities are extracted ; on the base of geometry entities extracted, geometry entities are classified based to their three views. a new data structure is proposed to describle 3d form features ; inspection items of the workpiece are recognized ; the cmm - based inspection planning system is built ; on the other hand, as a part of cims, cmm need exchanging data with the software of cad / cam, so iges export interface is developed based on iges standard. in order to show the whole information of the surface, the 3 - dimensional free - form surface is drawing using the opengl

    通過讀取iges文件對實體進行分離、提取、識別出對工件進行描述的原始信息；在此基礎上，西安理工大學碩士學位論文提出一種優化演算法對三視圖自動進行分離，建立了一種對工件進行三維描述的數學模型，照此模型對工件進行立體重構；識別出工件的各種檢測信息，提出一種對公差信息進行描述的數學模型，井與三維立體相結合，生成有檢測意義的三維實體；根據三坐標機的測量系統，生成相應的檢測規劃；另一方面，作為cmis的一部分，應具有與cad cam軟體之間的數據交換功能，本文還開發了iges輸出介面，採用opengl繪制三維空間曲面，向用戶展示其全面信息。
  7. Based on the scrutiny of the application of virtual reality technology and the analysis of the current status of vr application in automobile design, a car body modeling system is proposed in this thesis. this system utilizes ug ' s powerful surface modeling, solid modeling, further development and highly interactive tools, nicer virtual environment to realize car body modeling and virtual assemble

    本文在討論了虛擬現實技術的發展及國內外研究現狀，並深入分析了虛擬現實技術在汽車設計中應用的基礎上，提出了一個基於ug平臺上的車身虛擬造型系統，該系統藉助于ug軟體強大的曲面、實體造型功能以及二次開發功能，良好的輸入輸出界面、交互工具，很好的虛擬環境效果來實現車身的三維虛擬概念造型、虛擬裝配。
  8. Abstract : by both the external combination of deck coefficient and designed water - line coefficient ? and the in - ternal combination of deck transformation and cross - section area curve transformation ? a new ship line is generated on the condition that cross - section area is the same as the basic ship and designed water line satisfies the need. this method needs not look for any transformation function to finish the change of cross - section area curve. it is a profitable development to the traditional lackenby method

    文摘:本文通過甲板面面積系數和設計水線面面積系數的外層疊代、甲板面變換和橫剖面面積曲線變換的自身內層疊代，在保持橫剖面面積曲線不變的條件下，獲得滿足設計水線面系數變化要求的新船型，而不必尋找橫剖面線的變換函數來實現設計水線面的變換，本方法是對傳統的母型船變換的一個有益補充。
  9. Surface modeling is an important subject in computer aided geometric design and computer graphics. it researches on denoting, designing, displaying and analyzing of surface in the environment of computer image system

    曲面造型（ surfacemodeling ）是計算機輔助幾何設計（ computeraidedgeometricdesign ， cagd ）和計算機圖形學（ computergraphics ）的一項重要內容，主要研究在計算機圖象系統的環境下對曲面的表示、設計、顯示和分析。
  10. Fluid physical properties, pressure measurement, forces due to static fluids, bernoulli ' s equation, general energy equation, energy losses due to friction, pipe line systems, pump selection and application, open channel flow

    本課程含流體物理性質、壓力測量、沉體平面和曲面所受作用力、柏努利方程式、一般能量方程式、摩擦形成的能量損失、管線系統、明渠流、泵的選擇與應用。
  11. Measuring method and technique that 3d surface shape is recovered from 2d gray image ( shape from shading ) can obtain surface shape by natural way and easily realize the information integration of intersystem. particularly, this technique belongs to non - contact measurement, and it has become a puzzle and hotspot question in image measuring domain based on vision in recent years

    直接由物體的二維灰度圖像恢復其三維幾何形狀（由明暗恢復形狀）的曲面測量方法和技術，能以自然方式提取物體表面的形狀信息，且易於實現系統間的信息集成，尤其是該方法屬于非接觸測量方法，特別適合於測量由彈性模量低的易變形材料製成的零件，近年來一直是基於視覺的圖像測量領域研究的難點和熱點問題。
  12. Local opera is part of national classical culture, showing aesthetic psychology and feature of national tradition ; on the other hand, it is naturally related with local culture from which it comes, embodying varied local flavours and transmitting the survival cipher of this specific local crowd

    摘要地方戲曲一方面是民族古典文化的一部分，和其他文化、藝術形式共同體現著相通的民族傳統審美心理和審美特徵，反射著古典藝術的光輝；另一方面，又必然和其所自產生的母體地方文化之間有著不可分割的同格同構關系，體現著形態各異的地方風情，傳遞著這個特定地方人群的生存密碼。
  13. In some time - critical situation, continuous ssi is computation bottleneck of some solid modeling system. conventional approach for solving continuous ssi often uses intersection algorithm iteratively without taking the characteristic of the surface into account to simplify computation. the dissertation analyzes the intersect curve structure of continue surface, from the point of intersect curve ' s evolution, it describes the relationship between topology of offset surface intersect curve and topology transmit point ( ttp )

    等距曲面和運動曲面在cad cam領域中有著重要的應用，在一些時間敏感場合例如數控加工動態模擬，等距曲面和運動曲面等連續變化曲面求交運算已成為這些系統的計算瓶頸，連續變化曲面求交問題的通常解法是採用曲面求交演算法反復迭代計算交線，沒有考慮連續變化曲面交線之間的相似性進行求交簡化，效率上一直不能有很大的提高。
  14. As the foundation of computer - aided geometric design ( cagd ), it is important to improve the way of the generating algorithms for curve and surfaces

    系統地討論了曲線曲面的逐點生成演算法，介紹了直線的一般生成演算法及該演算法的推廣演算法，並對其進行了改進。
  15. Geometrical and physical meanings of difference surface are presented, and the parameters of tooth surface topographic deviations are derived. in addition, the complete mathematical formulae of the 0th, the 1st, 2nd order form deviations is proposed, and diagnostic parameters of each order form deviation is gotten by the least square method, which lead to evaluate the tooth surface topographic deviation quantificationally

    系統地給出了差曲面的幾何意義和物理意義，提取了齒面拓撲誤差參數;給出了零階誤差、一階誤差、二階誤差的完整數學公式，並且用最小二乘法得到了各階誤差的特徵參數值，實現了對齒面拓撲誤差的定量評定。
  16. Furthermore, we carry out motion simulation to the spherical gear, gear ' sfluted disc and flexible wrist, thus confirm the theoretical analysing model. 5. we bring forward the generating cutting method based on spherical gear drive, and develop experimental cutting set - up in principle. in theory, the generating mehtod bases that the tooth form of a pair of gear is conjugated

    范成法加工的理論依據在於一對球齒輪的齒廓曲面互為共扼曲面，它們在傳動過程中互為包絡面，如果將其中的一個球齒輪的齒廓做成刀具，另一個為被加工齒輪的毛坯，由機床傳動系統保證兩者之間的嚙合運動，就可以加工出球齒輪。
  17. The system includes the menu, the programs of parametric drawing and the dcl dialog box. the menu is designed by icons, which can be switched to the menu of autocad. the dialog box include image and edit - box and radio - button

    該系統包括菜單、參數化繪圖程序和dcl對話框設計，其中菜單採用圖標菜單，並能和autocad標準菜單進行切換；對話框主要採用圖象控制項、 edit - box編輯框和radiobutton按鈕；參數化繪圖程序採用autolisp語言編制，每一種曲面構件展開單獨編制一段程序。
  18. To fulfill the need of the application of rp technique in medical domain, reverse cad modeling from medical cross sections is systematically studied in this dissertation. firstly, some algorithms related to the research of this dissertation are studied. new algorithms for orientation and inclusion test for simple polygon, an error constrained automatic faring algorithm for b - spline curve and a theorem regarding the termination criterion for subdivision of triangular bezier patch are proposed

    本文針對rp技術在醫學領域應用的需要，系統研究了基於醫學斷層輪廓數據的反求cad建模理論和方法： （ 1 ）在基礎演算法研究部分，提出了簡單多邊形方向及點在多邊形內外判斷的新方法、三角b zier曲面片離散的誤差控制定理和一種帶誤差約束的b樣條曲線的自動光順方法； （ 2 ）提出了一種基於相鄰層輪廓相似性的醫學斷層輪廓數據曲面重構方法； （ 3 ）提出了一種稱為「虛擬測量」的曲面模型處理方法。
  19. On the other hand, this flow is a typical non - linear model and there exists complicated secondary flow on the cross - section, also, a bifurcation will appear on some conditions. this study is signality in theory and has a broad application future

    另一方面，旋轉曲線管道系統是流體力學非線性的典型模型，在截面上存在形態復雜的二次流動，在某些條件下出現分叉解，深入研究旋轉管道流動，具有重要的理論意義。
  20. And the average illumination intensity can be figured out through statistic method. here, some kinds of traditional led ' s optical encapsulated structure were simulated using monte carlo method. and experiments were performed using the correspondent led ' s optical encapsulated structure with the same conditions just like what were used in simulation

    採用二次曲面系數矩陣a統一描述任意二次曲面，給定系數矩陣a1 ， a2 … ， an ， （ n為小於10的正整數） ，和描述曲面范圍的條件，就描述了一個完整的led光學結構模型供模擬。
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