polyhedral 中文意思是什麼

Fanned by a constant updraught of ventilation between the kitchen and the chimneyflue, ignition was communicated from the faggots of precombustible fuel to polyhedral masses of bituminous coal, containing in compressed mineral form the foliated fossilised decidua of primeval forests which had in turn derived their vegetative existence from the sun, primal source of heat radiant, transmitted through omnipresent luminiferous diathermanous ether

自廚房至煙囪的孔道，不斷地向上通風，灼熱的火被它煽得從成束的易燃柴禾延燒到多面體煙煤堆上。這種煤炭含有原始森林的落葉堆積后凝縮而成的礦物狀化石森林之發育生長靠的是熱輻射性源-太陽，而熱又是由那普遍存在傳光並透熱的能媒33傳導的。

Holomorphic proper mapping between two kinds of generalized hartogs polyhedral

多面體之間的全純逆緊映射

Virions may be polyhedral or helical and vary greatly in size

其形狀有多面體形和螺旋形，其體積大小多變。

Any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent

各面都是正多邊形且多面體的角都相等的立體。

Strictly extreme points and polyhedral normed spaces

嚴格端點與多面體形賦范空間

Crystal morphology and growth mechanism of sphalerite crystallites were studied by formulating the mathematical model and calculating the stability energy of the growth units on the basis of the theoretical model that the growth units are polyhedral structure of coordinative anions

摘要本文從負離子配位多面體生長基元模型出發，建立了閃鋅礦晶體生長基元的數學模型，通過對閃鋅礦晶體生長基元穩定能的計算，討論了閃鋅礦的結晶形態和生長機理。

Robust polyhedral boolean set operations achieved by triangle - based representations

統一於三角面片的可靠多面體布爾集合運算

Convex polyhedral cone

凸多面錐

Region recognition based polyhedral model reconstruction from orthographic projections

基於面域理解的多面體三維重建

In the paper, we apply the method to the polyhedral figure and the result is good

我們提出的方法是建立在名叫dogme的空間變形模型的基礎上。

The formation of polyhedral cages and clusters has only recently been recognized as an important and widespread phenomenon.

多面體的籠狀和簇狀結構的形成只是最近才被認為是一種重要而又普通的現象。

In this paper, i will present some algorithms of polyhedral visual hull reconstruction : ( 1 ) polyhedral v isual h ull generation a igorithm b ased one dge - pool - searching, which constrains the 3 - d intersections into the 2 - d planes intersection via the epipolar theory to reduce the complexity a nd c an r educe t he t imes f or c ones t o b e p rejected o nto t he i mage p lanes, i n which we induced the index list to every points on the surface of object, and connected the related points to get sub polygons on surface and in turn get the mesh model, we replace triangulation process of disordered points cloud by edge - pool searching. ; ( 2 ) reconstruction based on degenerated - polygon - intersection, which have the following improvements on traditional bull intersection : using degenerated polygon to orga nize intersected area on cone face, which may be discontinuous ; a fast intersection algorithm of polygons on the cone face based on degenerated polygons, which is consistent between the continuous polygons and the discontinuous ones. the intersection of degenerated polygons is similar to the convergence of two ordered lists, which is comparably simple to the bull operation ; ( 3 ) reconstruction algorithm based on ray - tracing, in which all the rays that run through the vertex on silhouette of object will intersect with all the cones correspondent to other silhouette, and we have to calculate the intersection of all such line segments, the endpoints of which are considered to lie on the surface of object and we will get the point cloud on the surface of object

同時利用共極線原理把三維計算投影到二維平面以降低求交計算的復雜度，該演算法可以減少光錐向圖像平面投影計算的次數，以邊池搜索取代散亂點集上進行的三角剖分； （ 2 ）基於退化多邊形求交的多面體可見殼模型重構，系統引入退化多邊形的概念，把錐體平面的交集中不連通的部分用一個退化多邊形來表示，並引入了新的基於退化多邊形的求交演算法，與傳統多面體可見殼重構相比，該演算法有以下幾點創新：在圖像平面以退化多邊形組織投影錐體和物體輪廓的交集，把任意錐面與物體輪廓的交集歸一到一個退化多邊形；基於退化多邊形的二維平面上多邊形快速相交演算法，該演算法在一定程度上就是兩個有序鏈表的合併，大大簡化了先前的布爾求交計算； （ 3 ）基於光線跟蹤的演算法，該演算法中所有通過輪廓頂點的光線和對應其它圖像輪廓的光錐進行求交計算，最後得到每次求交計算得到線段的交集，該線段的頂點就認為是物體表面點，從而得到物體表面的點雲。

Information and systems, 2005, 88 : 646 - 651. 33 chao - hung lin, tong - yee lee. metamorphosis of 3d polyhedral models using progressive connectivity transformations

在二維和三維中的實驗結果都表明，應變場插值是處理差異很大的圖形漸變問題的有效方法。

Computer animation, philadelphia, usa, 1998, pp. 64 - 71. 16 tong - yee lee, po - hua huang. fast and intuitive metamorphosis of 3d polyhedral models using smcc mesh merging scheme

本文主要的貢獻是將力學中對物體形狀變化的描述工具應變場引入了計算機動畫的研究中，並由此提出了使用應變場插值的三維圖形漸變方法。

Based on its structure and properties the organic / inorganic hybrid of polyhedral oligomeric silsesquioxanes ( poss ) are summarized. and the development tendency of poss was discussed

摘要從籠型倍半硅氧烷的結構特點及主要性能方面出發，對籠型倍半硅氧烷的有機無機雜化改性進行了綜合性描述，評述了它們的發展趨勢。

A discontinuous method is proposed for arbitrary convex polyhedral finite elements in the context of elasticity

摘要對彈性力學問題，提出一種任意凸多面體間斷有限單元法。

System to place observer on a polyhedral terrain in polynomial time. image and vision computing, dec. 1996, 18 : 773 - 780

第3步：結點和根據頂點選擇演算法vertex selection algorithm為s和t選擇合適的頂點和

In this paper, the researches on the substitutions of ca - polyhedral, p - tetrahedral and channel positions in apatite structure are reviewed, the structural sites, substitution forms and mechanism of isomorphic ions are discussed, and the influence of the substitution of this mineral upon the environmental mineralogy is briefly described

摘要綜述了作為重要環境礦物材料的磷灰石在鈣位、四面體位和結構通道位置上類質同象替換的研究進展，討論了替換離子的結構佔位、替換形式和機理，並就替換對這種礦物在環境治理領域應用的影響進行了簡要評述。

Phages usually have complex capsids ( protein coats ) composed of a polyhedral head, containing the nucleic acid ( dna or rna ), and a helical tail, through which nucleic acid is injected into the host

噬菌體通常由復雜的衣殼組成一個多角體的頭部，包含有核酸（ dna或rna ）和螺旋狀的尾管，通過這個尾管核酸可以被注入寄主的體內。

The combined toy as right request 1 or 2 stated, whose character is : the iron stick or the magnet stick links the electronic components by an iron ball or a piece of polyhedral iron, or being connected with each other

如權利要求1或2所述組合玩具，其特徵是：鐵棒或磁鐵棒是通過一個金屬鐵球或多面體鐵塊連接電子元器件或彼此之間進行連接。