As we all known, with the founding of Euclidean geometry in ancient Greece, with the development of analytic geometry and other kinds of geometries, with F.Kline" s Erlanger program in 1872 and the new developments of geometry in 20th century such as topology and so on, man has developed their understand of geometry. On the other hand, Euclid formed geometry as a deductive system by using axiomatic theory for the first time. The content and method of geometry have dramatically changed, but the geometry curriculum has not changed correspondingly until the first strike from Kline and Perry" s appealing.

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This paper presents an IFMC CAD model that consits of a geometry model and a material model, in which the geometry space acts as a base space and the material space acts as a bundle space. In this CAD model, the geometry model is based on the non-manifold model. In addition, a half-face data sturucture, which is derived from the half-edge data structure with the non-manifold feature of IFMC taken into account, is adopted to represent the geometry and topology information of the component. For the material model of IFMC, this paper focuses on the FGM component representation firstly and present a simplex-subdivision based CAD data exchange format, in which the material information is represented as a (n-1) simplex and material distributing feature is represented by the interpolation on the simplex-subdivision. Based on those, a part-building orientation optimization algorithm and an adaptive slicing algorithm for FGM component are presented in the paper. For the IFMC material model, the IFMC material information representation is divided into a meso-scale and a macro-scale representation. In the meso-scale, a concept named parameterized periodic functional meso-structure is presented as a unique form to represent the FGM (the homogeneous materials are regarded as a special FGM), the composite and the functional meso-structure material. The model of PMS is a three-tuple that contains the space state informatation, the material parameter and the material meso-scale distribution feature. The macro-scale material information representation is similar to the FGM components by interpolation of the control parameter of the periodical functional meso-structure based on the simplex-subdivision. Through an example of manufacturing-oriented IFMC CAD data processing, it is proved that the IFMC CAD model and the material information representation and process method proposed in this paper can provide a reliable data support for IFMC digital concurrent design and manufacturing.

本文將理想材料零件CAD模型建立在以幾何空間為底空間91大屁股精选、以材料空間為叢空間的結(jié)構(gòu)上特级欧美淫秽视频展播，使用非流形幾何模型作為理想材料零件幾何拓?fù)淠Ｐ偷幕A(chǔ)，并在半邊數(shù)據(jù)結(jié)構(gòu)基礎(chǔ)上久艹视频在线观看，針對(duì)理想材料零件的非流形特征局限內(nèi)部邊界上的特點(diǎn)八插八插黄色美女视频，給出了一個(gè)半面數(shù)據(jù)結(jié)構(gòu)來(lái)表述零件的幾何拓?fù)湫畔ⅲ粚?duì)于理想材料零件的材料模型可以直接看的av网址，本文先從功能梯度材料零件的信息表述與CAD數(shù)據(jù)交換和處理入手在线国产黄色网址，將材料信息表述為（n-1）維單純形，然后通過(guò)對(duì)三維幾何區(qū)域的單純剖分狠狠干手机，以插值的方式表述零件材料分布特征中文字幕第一百页；在此基礎(chǔ)上，根據(jù)功能梯度材料零件分層制造中對(duì)CAD數(shù)據(jù)處理的要求在线观看一级作爱视频，給出了綜合考慮零件幾何特征與材料特征的生長(zhǎng)方向優(yōu)化算法和自適應(yīng)切片算法国产精品无码一级视频；而對(duì)于文中所定義的理想材料零件，本文將其材料信息表述分解到細(xì)觀和宏觀兩個(gè)尺度進(jìn)行欧美一级A片黄片，首先給出了細(xì)觀尺度上參數(shù)化的周期性功能細(xì)結(jié)構(gòu)概念色视频操暴力，以此來(lái)統(tǒng)一表述功能梯度材料（單質(zhì)材料作為特殊的功能梯度材料看待）、復(fù)合材料和功能細(xì)結(jié)構(gòu)材料在线欧美精品二区三区；把周期性功能細(xì)結(jié)構(gòu)模型化為一個(gè)包含空間狀態(tài)信息美女裸体在线免费视频一区二区、材料構(gòu)成參數(shù)和材料細(xì)觀分布特征參數(shù)的三元組，以表達(dá)零件的細(xì)觀材料特征欧美专区地址；對(duì)于零件宏觀的材料變化特征日本在线观看视频网站，則同樣在幾何區(qū)域單純剖分的基礎(chǔ)上，通過(guò)對(duì)細(xì)觀尺度上周期性功能細(xì)結(jié)構(gòu)控制參數(shù)的插值來(lái)完成久久AA视频；通過(guò)理想材料零件CAD數(shù)據(jù)處理的算例欧美一级a卡片免费观看，驗(yàn)證了本文中理想材料零件CAD模型及材料信息表述與處理方法完全可以為理想材料零件的數(shù)字化制造提供可靠的數(shù)據(jù)支持。

On the base of these, and the ideas of mathematical curriculum reform and the course of the reform of solid geometry, combining with educational reality and students" psychology, put forward some thoughts about solid geometry of middle school in future:(1) The arrangement of curriculum content should. give consideration to both the logical sequence of knowledge and the development of students" psychology, and make them united;(2) Paying great attention to the analogy of plane geometry and solid geometry;(3) Some respects remained to be strengthened about solid geometry in senior middle school;(4) Emphasizing the importance of conversion in solid geometry;(5) Stressing on the combination of solid geometry and algebra and other subjects;(6) The design of the content of solid geometry should have certain elasticity, and make solid geometry and modern education technology well combined.

在此基礎(chǔ)上国产综合亚洲一区二区三区播放，又植根于近年來(lái)我國(guó)數(shù)學(xué)課程改革的理念和立體幾何課程改革的進(jìn)展中国特黄强奸A片，并結(jié)合我國(guó)的教育實(shí)際與學(xué)生心理，對(duì)未來(lái)中學(xué)立體幾何課程的設(shè)胃提出若干思考：(1)課程內(nèi)容的編排色狼av窝电影，要兼顧知識(shí)的邏輯順序和學(xué)塵的心理發(fā)展相統(tǒng)一人人摸人人爱人人操；(2)重視平面幾何和立體幾何的類(lèi)比；(3)高中階段立體幾何有待加強(qiáng)的幾個(gè)方面天天色狠狠干；(4)強(qiáng)調(diào)變換在立體幾何中的重要性；(5)注意將立體幾何和代數(shù)及其他學(xué)科相結(jié)合网站看黄；(6)立體幾何內(nèi)容的設(shè)計(jì)要有一定的彈性黄色日韩精品，并注意與現(xiàn)代教育技術(shù)相結(jié)合日韩电影精品午夜在线播放。

During the course of the well-known "new mathematics" campaign, the status of Euclidean geometry was completely overthrown in I960" s. After deeply thought of "new mathematics", the standpoint that geometry curriculum should reflect the content and method of modern geometry and be in touch with the student" s real life was agreed on. Other countries have tried some significant attempts. We can find from some geometry textbooks that the methods of transform and vector have appeared as a normal part. Simultaneous, not only the new developments of geometry such as Topology have been referred , but also the connection between geometry and practice has been strengthened.In China, geometry curriculum is also in the during of innovation.

而學(xué)校幾何課程在二千年的時(shí)間里一直沒(méi)有多大的變化，直到二十世紀(jì)初"克萊因—培利運(yùn)動(dòng)"的第一次沖擊第四色色色色，到60年代"新數(shù)學(xué)"運(yùn)動(dòng)的全盤(pán)改革女人被爽到呻吟的网站，以及之后的深入反思，中學(xué)幾何課程要反映現(xiàn)代幾何學(xué)的內(nèi)容和方法以及緊密聯(lián)系于實(shí)踐的觀點(diǎn)已經(jīng)受到普遍的重視a√在线影院，國(guó)外的幾何課程已經(jīng)在這方面做了不少有意義的嘗試日本强伦姧人妻一区二区，從國(guó)外的一些幾何教材中可以發(fā)現(xiàn)：變換、向量等工具已經(jīng)作為正式的內(nèi)容進(jìn)入幾何教學(xué)亚洲激情国产一区精品，拓?fù)鋵W(xué)等幾何的新發(fā)展也開(kāi)始在教材中有所體現(xiàn)国产精品久久久；幾何課程與實(shí)踐之間的聯(lián)系更是在很大程度上得以加強(qiáng)。

This option is not suitable to only set the startup screen (and not also the fullscreen screen), geometry is the best that is available for that purpose currently.

該選項(xiàng)不適用于僅僅設(shè)置啟動(dòng)屏幕（因?yàn)槠淇偸窃谥付ǖ钠聊簧弦匀练绞斤@示）人人干人人操在线，geometry 是目前可用于此目前的最好選項(xiàng)色哟一区二区在线看。

The geometry of closing is merely scientific jargon for the fact that when the hand closes to form a fist, all fingers touch the palm of the hand at the same time.

的解釋。&geometry of closing &僅僅是一個(gè)科學(xué)術(shù)語(yǔ)精品国产点击网站，來(lái)描述當(dāng)手握緊形成一個(gè)拳頭欧美日韩性爱网络，所有的手指都會(huì)同時(shí)接觸到手掌的現(xiàn)象。

Section 2.2 Geodes and Geometry briefly describes OSG's default world coordinate system orientation.

2.2節(jié)Geodes和Geometry已經(jīng)簡(jiǎn)要的介紹過(guò)了OSG的系統(tǒng)默認(rèn)坐標(biāo)色一情一乱一伦一区二区三欧美。

Section 2.2 Geodes and Geometry briefly describes OSG's default world coordinate system orientation.

2.2節(jié)Geodes和Geometry已經(jīng)簡(jiǎn)要的介紹過(guò)了OSG的體系默許坐標(biāo)99视屏在线。

As Chapter 1 explains, the cull traversal stores references to geometry and state in a render graph for processing during the draw traversal. The osgViewer library supports many threading models, some of which run the cull and draw traversals in one or more threads.

如第一章中所說(shuō)的，揀擇遍歷包含了在一個(gè)繪制遍歷時(shí)襯著圖形中對(duì)于geometry和state的引用成年人看免费视频大。osgViewer庫(kù)撐持多線(xiàn)程模型国产精华Av在线导航网站，此中包括單or多線(xiàn)程的揀擇遍歷及繪制遍歷。

As Chapter 1 explains, the cull traversal stores references to geometry and state in a render graph for processing during the draw traversal. The osgViewer library supports many threading models, some of which run the cull and draw traversals in one or more threads.

如第一章中所說(shuō)的韩国午夜理论片在线观看手机，揀選遍歷包含了在一個(gè)繪制遍歷時(shí)渲染圖形中對(duì)于geometry和state的引用无码观看一区。osgViewer庫(kù)支持多線(xiàn)程模型，其中包括單or多線(xiàn)程的揀選遍歷及繪制遍歷自拍日韩中文无码视频。