查询词典 triangular numbers

Then, the model is extended to triangular mesh surface. The definition of highlight-line model on triangular mesh surface is put forward.

本文首先在NURBS曲面上实现了连续曲面的高光线模型，然后将高光线模型拓展到三角网格曲面中。

ABSTRACT Based on the discussion of the characteristics of triangular Bezier patches, the theory and method of triangular Bezier surface modeling for 3-D scattered data points have been systematically studied.

本文在分析Bezier三角曲面性质的基础上，系统地研究了离散数据的Be-zier三角曲面造型的理论、方法和应用。

Based on two-dimensional domain decomposition with small overlapping, we provide a method in which local lower and upper triangular incomplete factors are combined into an effective approximation for global incomplete lower and upper triangular factors of coefficient matrix.

基于二维重叠区域分解，对每个子区域上局部不完全LU分解所得到的上、下三角因子分别进行组合，给出一类全局并行不完全分解型预条件。

Based on the improvement of Taubin s discrete curvature estimation method of triangular mesh by the adoption of area and angle weighted triangle vertex normal vector calculation formula and triangle centroid weights, a novel algorithm for triangular mesh regularization is presented.

采用面积夹角加权的三角网格模型顶点法矢及三角片质心权值对Taubin的三角网格模型离散曲率计算方法进行了改进，在此基础上提出了一种新的三角网格模型优化调整方法。

Concentration of silver behenate solution affects the morphology and packing density of silver. The thin silver film of spherical silver particles, with an average diameter of 160 nm has been fabricated by a millimolar solution of silver behenate. The thick silver film is consisting of the regular silver particles with triangular or truncated triangular shape, which is formed at high concentration.

山嵛酸银分散液的浓度影响银薄膜中银粒子的堆积密度和形态，在很低浓度下可以得到银粒子均匀分散的金属银薄膜，球形银粒子平均粒径为160nm；而高浓度的山嵛酸银分散液得到较厚的金属银薄膜，薄膜中含有规则的三角形和截三角形银颗粒。

Leaves triangular or ovate triangular, 1.5-5 cm wide; inflorescence racemose or corymbose.

叶三角形的或卵形三角形，1.5-5厘米宽；花序总状的或伞房状。

Radical leaves with sheath broadened at base; petiole 30--90 cm; leaf blade triangular or triangular-ovate, 5--15(--25)× 3--15 cm, base sagittate to hastate, apex acute to acuminate.

胚根叶具鞘扩大在基部；叶柄30-90厘米；叶片三角形的或三角状卵形， 5-15(-25)* 3-15 厘米，基部箭头形到戟形，先端锐尖或渐尖。

Leaves needlelike, slender or stout, straight or twisted, triangular, flabellate-triangular, or semiorbicular in cross section, stomatal lines several, on 1, 2, or all surfaces, vascular bundles 1 or 2, resin canals 2-10 or more, marginal or median, rarely internal, base enclosed by persistent or deciduous, membranous sheath. Pollen cones usually borne in spikelike clusters at base of 1st-year branchlets, sessile, cylindric or ovoid; pollen 2-saccate.

叶针状，纤细的或粗壮，直的或扭曲，三角形，扇形三角形，或半圆形在横断面上，气孔线数个，在1，2上，或全部表面，在第1 年的小枝，无梗，圆筒状的或卵球形的穗状的簇生在基部里的雄球花通常着生；花粉2囊。

Pedicel to 1 cm. Sepals narrowly triangular, 4-11 mm. Corolla yellow, tube 0.9-1.6 cm, puberulent on both sides or glabrous inside; lobes with a red basal spot inside, ovate, to 10 cm, abruptly narrowed into pendulous tails to 1 mm wide; corona lobes 10, greenish yellow, triangular or awl-shaped, 0.9-3 mm. Anthers included, connective tail to 0.6 mm. Ovary glabrous.

在里面0.9-1.6厘米，被微柔毛的两面或无毛的1 厘米萼片狭三角形，4-11毫米花冠黄，管的Pedicel；裂片具红色基部斑点在里面，卵形，令10厘米的是，突然缩小进下垂有尾给毫米宽；副花冠裂片10，黄绿色，锥形的三角形的或，0.9-3毫米花药包括，给子房无毛0.6毫米有尾的药隔。

Painted mostly in black, use either brown-red; decoration in order to change patterns of plant leaf tissue the main triangle dots are curved, half-moon, geometric shape such as decoration, while the pattern is often curved triangular structure 22 opposite or contrary to , side-side, middle, or draw a straight line or without pattern, with a few arc composed of upper and lower triangular or half moon or the top of the left commensurate with quite a few patterns, followed by a small amount of a pattern of squares, bands and so on.

彩绘以黑色居多，兼用棕红色；纹饰以植物叶纹变体组织为主，有弧形三角圆点、半月形、几何形等纹饰，而图案的结构往往是弧形三角两两相向或相背，侧旁、中间或绘直线或无纹，以几个弧形三角或半月形组成的上下左右相称或对顶的纹样也不少，其次还有少量的方格纹、带纹等。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。