In this paper, firstly, the embeddability of near-triangular graphs on the orientable surface is studied. By using Petersen's Theorem about 1-factor, we first prove that for a near-triangulation on the orientable surface, its geometry dual graph has a 1-factor; then after a procedure of operation leaded by the 1-factor, we show that if a graph G triangulates some orientable surface S_g, then G has a near-triangular embedding in S_h for h = g,g + 1,...,β(G/2」, where β is the Betti number of G. Hence we obtain a conclusion: A near-triangulation of the orientable surface is upper-embeddable. As a generalization, a class of near-quadrangulation is studied, and similar results are obtained.

本文首先研究了近三角剖分圖的可定向曲面嵌入性質(zhì)，通過運(yùn)用Petersen關(guān)于1-因子的定理黄色丝袜网站，首先證明了對(duì)于可定向曲面上的三角剖分圖超碰97青青久久人人澡，其幾何對(duì)偶圖具有1-因子；然后在1-因子的導(dǎo)向下黄色在线观看www，通過做一系列增加虧格的手術(shù)婷婷五月综合色在线看，證明了如果一個(gè)圖G三角剖分可定向曲面S_g，那么G可以近三角剖分可定向曲面S_h国产精品最新高清网址，這里h=g无图无码视频网站在线，g+1，…精品91在线，「β(G／2」亚洲久久青草鸭，β是指圖G的Betti數(shù)，從而得出推論：可定向曲面上的三角剖分圖是上可嵌入的91av福利在线观看，作為推廣www.756av，又研究了一類近四角剖分圖的可定向曲面嵌入性質(zhì)，并得到類似的結(jié)論成人毛片视频免费无卡播放。

In chapter 4, an optimization Boolean operator of triangular mesh and the algorithm of adding point-swapping edge locally are put forward. With boundary traced by adding midpoint, the triangulation of 2D arbitrary domain is realized. The fast searching method which combines the index rectangle with compass based normal vector is designed to speed the triangulation algorithm.

第四章提出了一種優(yōu)化的三角網(wǎng)格布爾運(yùn)算和逐點(diǎn)加入—局部換邊法精品欧美伦欲视频，用中點(diǎn)加點(diǎn)法恢復(fù)邊界，實(shí)現(xiàn)了二維任意域Delaunay三角化算法，用索引矩形和基于法矢的指南針法相結(jié)合的快速查詢法有效地提高了三角化算法的速度日本高清视频免费WWW，給出了二維任意域三角網(wǎng)格剖分的實(shí)例影音先锋每日资源网。

Whether Zhou s triangulation would derive MWT of a planar point set, Zhou Peide had drawn a new conclusion before the comments "Zhou s Triangulation is not the minimum weight triangulation " were given.

周培德三角剖分是否能得到最小權(quán)三角剖分，周培德在《周培德三角部分不是最小權(quán)三角剖分》一文撰寫之前已有新的結(jié)論成人短视频在线免费观看网站，本文還指出《周培德三角剖分不是最小權(quán)三角部分》一文所舉反例不成

Based on the study of triangle mesh of creation algorithm, include the arithmetic of regular data make triangle mesh and irregular data make triangle mash. The paper put forward a optimized triangle mesh algorithm. Its key point is divide data into pieces in advance, then set up the net. The experiment result shows that this algorithm improves not only the efficiency of terrain molding, but also the precision compared with the old algorithms The main purposes of this paper are research visualization algorithm of three dimensions and the arithmetic of terrain visualization.

本文研究了基于三角形網(wǎng)格的地形建模的基本理論和方法婬过年系列新春下药在线观看，包括規(guī)則數(shù)據(jù)的三角網(wǎng)生成以及不規(guī)則三角網(wǎng) TIN 的生成算法，總結(jié)了前人在這些方面所做的工作激情综合网www，本文提出了一種優(yōu)化的三角網(wǎng)格生成算法西西人体久久，實(shí)驗(yàn)結(jié)果表明，該算法不僅提高了地形建模的效率乱子精品无码一区二区三区，而且所生成的三角網(wǎng)格模型與以往算法相比精確性也有很大的提高色色色色色男人视频网站。

Two above methods are generalized to tensor product Bézier surfaces and triangular Bézier surfaces, we give two approaches of degree reduction for tensor product Bézier surfaces, each of which reduces a given degree n×m tensor product Bézier surface to a n〓×m〓 one, and two methods of degree reduction for triangular Bézier surfaces, which reduce a given degree n triangular Bézier surface to a degree m one. The explicit formulas of control points for reduced tensor product and triangular Bézier surfaces are obtained respectively.

張量積Bézier曲面的兩種降階方法均可把n×m階張量積Bézier曲面一次降階為n〓×m〓階張量積Bézier曲面；三角Bézier曲面的兩種降階方法均可把n階三角Bézier曲面一次降階為m階三角Bézier曲面国产淫网站，并給出降階張量積Bézier曲面和降階三角Bézier曲面控制頂點(diǎn)的顯示表示式久久99精品这里精品,9。

Long triangle already was long triangle of China not only, also be the long triangle of the world, long three-cornered development should be put in global pattern to consider.

長三角已不僅是中國的長三角人人肉人人摸人人操，也是世界的長三角，長三角的發(fā)展要放在全球的格局中來考慮。

The concept of triangular ratio and triangle formula;(2) Reorganization and deep understanding of the concept of complex number which are promoted by the learning of triangular representation of complex number;(3) Teacher's beliefs and college entrance examination.

本文中的調(diào)查顯示亚洲第五十九页，復(fù)數(shù)的三角形式是學(xué)生認(rèn)知的難點(diǎn)www黄色一片在线观看，我從以下四點(diǎn)分析了對(duì)學(xué)生學(xué)習(xí)三角形式的影響：（1）三角比日本特级黄色一区二区三区、三角公式對(duì)復(fù)數(shù)三角形式認(rèn)知的影響精品人妖一区二区三区四区；（2）復(fù)數(shù)三角形式的學(xué)習(xí)是學(xué)生對(duì)復(fù)數(shù)認(rèn)知的重組和深化；（3）老師的信念和高考對(duì)學(xué)生學(xué)習(xí)復(fù)數(shù)三角形式的影響天天干干干；（4）教材體系的編排對(duì)學(xué)生學(xué)習(xí)復(fù)數(shù)三角形式的影響欧美第一射。

Results There were Parkinson trigone, paramedical trigone, Mullan trigone, lateral trigone, Glasscock trigone and Kawase trigone which were exposed in the lateral wall and their surrounding areas.

結(jié)果海綿竇外側(cè)壁及其附近的旁內(nèi)側(cè)三角、Parkinson三角亚洲免费黄色网站入口、Mullan三角九九色色视频、外側(cè)三角、Glasscock三角和Kawase三角99r在线观看视频精品，這些三角均可以從硬膜外得以暴露女性毛片A。

Results:12 trigones were observed in CS.They were anteromedial trigone,medial trigone,carotid trigone and oculomotor trigone in the superior wall of the CS; Lateromedial trigone,Parkinson trigone,Mullan trigone,lateral trigone,Glasscock trigone and Kawase trigone in/near the lateral wall.Inferolateral trigone and inferomedial trigone in the posterior wall.

結(jié)果：CS上壁內(nèi)有前內(nèi)側(cè)三角成年人黄色视频网站、內(nèi)側(cè)三角亚洲A∨无码午夜剧场、頸動(dòng)脈三角和動(dòng)眼三角；外壁內(nèi)及其附近有旁內(nèi)側(cè)三角人妻精品久久无码专区久久、Parkinson三角www,x日本,COm、Mullan三角、外側(cè)三角国产在线观看免费黄91网站、Glasscock三角和Kawase三角：后壁上有下外側(cè)三角和下內(nèi)側(cè)三角激情五月毛片免费。

The P wave duration and P 2R interval were increased while pacing at right atrial appendage 1 The activation time from pacing site to His bundle and coronary sinus was the longest in pacing at right atrial appendage , while the activation time in pacing at Koch triangle , Koch triangle with high right atrium and biatria was significantly shorter especially pacing at Koch triangle and Koch triangle with high right atrium1 There were no significant differences in right atrium pressure among all pacings1 Conclusion It is suggested that Koch triangle pacing could probably replace high right atrial with coronary sinus pacing and biatrial pacing 1

從心房激動(dòng)順序分析，右心耳起搏時(shí)，激動(dòng)傳至希氏束區(qū)及冠狀竇區(qū)的時(shí)間最長操爽一级视频网站，而 Koch三角日韓在線專區、Koch三角+高位右房及雙房起搏時(shí)則較短，尤其是 Koch三角超碰人人人人人人人操、Koch三角+高位右房起搏縮短更明顯男女猛烈无遮挡高清免费。另外，不同部位404黃色網站免費看、不同方式起搏時(shí)右心房壓力無差異99精品日中。結(jié)論 Koch三角起搏在某種程度上可替代高位右房+冠狀竇起搏及雙房起搏。

Knit cam;Stitch cam：彎紗三角,成圈三角

15)脫圈三角Knock-over cam | 16)彎紗三角,成圈三角Knit cam;Stitch cam | 17)彎紗三角調(diào)節(jié)器,壓針三角調(diào)節(jié)器Stitch cam regulator

Leading Diagonal Triangle：首部斜三角型(也可譯為引導(dǎo)傾斜三角型)

Ending Diagonal Triangle 尾部斜三角型(也可譯為終結(jié)傾斜三角型或竭盡斜三角型) | Leading Diagonal Triangle 首部斜三角型(也可譯為引導(dǎo)傾斜三角型) | Irregular Tops 非常規(guī)頂

Lower triangular matrix：下三角矩陣

以圖10.5(a) 的下三角矩陣 (lower triangular matrix) 及圖10.5(b) 的上三角矩陣 (upper triangular matrix) 為例,如果是使用二維陣列來存放,將會(huì)浪費(fèi)許多記憶體,因?yàn)橄?strong>三角矩陣的對(duì)角線上方及上三角矩陣為的對(duì)角線下方均為0,

Tri Patch：三角面片;三角塊格柵平面

Transparency Falloff透明衰減 | Tri Patch三角面片;三角塊格柵平面 | Tri Patch Object三角面片物體

HEAVY UPPERCUT：三角三角三角

1-2 PUNCH 三角三角 | HEAVY UPPERCUT三角三角三角 | HELLFIREBALLHOLD 三角

tumbalalaika, shpiel balalaika：彈三角琴,奏三角琴

Tumbala, tumbala, tumbalalaika 彈吧,彈吧,彈三角琴. | tumbalalaika, shpiel balalaika 彈三角琴,奏三角琴, | tumbalalaika - freylech zol zayn 彈三角琴,盡情歡樂.

Codman：三角:柯德曼三角(骨膜三角)

Pauwels角:鮑維爾角 | Codman三角:柯德曼三角(骨膜三角) | Schmorl結(jié)節(jié):施莫爾結(jié)節(jié)

trigonum dorsale：背側(cè)三角

trigonum colli laterale 頸外側(cè)三角,頸外側(cè)三角 | trigonum dorsale 背側(cè)三角 | trigonum femorale 斯卡帕氏三角,股三角

trigonocephaly：三角頭畸形

trigonocephalic /三角頭的/ | trigonocephaly /三角頭畸形/ | trigonometer /直角三角計(jì)/三角法學(xué)者/三角測量者/

trigonometrical：三角法的; 以三角法完成的; 三角學(xué)的 (形)

trigonometric 三角學(xué)的; 三角法的 (形) | trigonometrical 三角法的; 以三角法完成的; 三角學(xué)的 (形) | trigonometry 三角; 三角法 (名)