查询词典 triangular numbers

Section method is to split the pit slope surface into several trapezoids so as to calculate their surface area;through a digital survey of the pit slope surface,a numerical elevation model is set up,on the surface the triangular mesh is built,and all the triangular meshes are piled up to get the surface area.

小三角锁法是通过对宕口坡表面数字化测量，根据测量数据建立数字高程模型，并在表面建立小三角锁，对所有小三角的面积累加得到面积的一种方法。小三角锁法大大提高了计算的准确度和效率。

Fruit triangular to triangular-ovoid, 5-6 mm; basal leaves ovate-elliptic, 1.5-5 × 1-3 cm.

卵圆形果三角形的到三角形，5-6毫米；基生叶卵状椭圆形， 1.5-5 * 1-3 厘米 23 R 。

Sepals triangular or ovate-triangular, 1.5–2 × 2–2.5 mm, margin irregularly minutely serrate, apex acute.

萼片三角形或卵形三角形， 1.5-2 * 2-2.5 毫米，边缘不规则有细锯齿，先端锐尖。

Sepals ovate-triangular or triangular, adaxially ± distinctly keeled.

萼片卵形三角形或者三角形，正面多少清楚地具脊。

Calyx teeth triangular to ovate-triangular.

萼齿三角形到卵形三角形。

On the geometric modeling, flat surface and curved surface are used to mesh and describe the model;on the electromagnetic modeling. Different basis functions( flat surface roof-top basis function, flat surface RWG basis function, curved surface roof-top basis function, curved surface RWG basis function) and different test functions (line-matching, Galerkin method) are applied to different cells(plat rectangle facet, triangular patch, Bezier patch, parametric surface, curved triangular patch etc.).

在几何建模方面，分别采用平面元和曲面元对模型进行了剖分和拟合；在电磁建模方面，针对不同的单元(平面元、平面三角元，、Bezier元、参数曲面、曲面三角元等)采用不同的基函数(平面roof-top基，平面RWG基，曲面roof-top基，曲面RWG基)和不同的检验函数进行处理。

In the construction of grey pairwise comparison matrices, we propose three approaches, namely, to apply (1) the reciprocals,(2) the upper and lower bounds, and (3) the grey operators of the upper triangular matrices as the lower triangular elements.

结果显示以灰元素及其倒数建构灰成对比较矩阵时，层级要素相对重要性程度之排序结果，与经由分析阶层程序法所得之排序结果相近；但由灰元素之上下限构成灰成对比较矩阵所得的结果，则与经由分析阶层程序法所得之排序结果差异极大。

Based on analyzing the algorithms of Delaunay triangulation creation in domestic and abroad, in view of the situation of building DTM and the need of realizing railway 3D visual design, a divide-and-conquer algorithm to build DTM is presented, the algorithm use square grids to manage disordered points, to form triangular meshes in grids, DTM can be obtained by merging the triangular meshes, so that the work of sorting of the disordered points before building DTM is reduced greatly; moreover, the algorithm utilize subarea to control the vertices of convex hull so that the range which support points locate in can be predefined when searching support points, the workload of searching support points can be reduced and the speed of merging two triangulations is raised.

在分析了国内外构建DTM算法的基础上，针对DTM算法的现状及铁路线路三维可视化设计的需要，创立了一种构建DTM的分治算法。算法引入方格网管理离散点数据，在格中构建三角网，然后再将这些三角网合并形成DTM，极大地减少了构网前对所有参加构网的离散点进行排序的工作量。此外，通过对凸包顶点数据进行分区管理，在搜寻凸包支撑线时，能预先确定出支撑点的范围，减少了搜索工作量，提高了三角网的合并速度。

Generally, The gauge reading demarcated in the laboratory is increasing arithmetic progression,so we can use null method that we intercalate sequential numbers in order to calculate simply. The sum of these sequential numbers are zero. We must intercalate different sequential numbers while the number of trials is odd or even.

因为在试验室标定时，压力表读数一般是按照等差数列递增的，所以为了计算的简便，可用"零点法"设置等差序号，使这一列数据的总和为零，此时要注意当试验次数分别为偶数和奇数时不同地设置等差序号的方法。

Similarly, the addition of any three natural numbers must satisfy associative law:+c=a+, and then we can verify that for any n natural numbers, the results of adding is the same in any associative way which keep the order of numbers.

类似地任何三个自然数可以有结合律：+c=a+，进而可以证明任何n个数的任何结合方式进行加法所得的结果是一致的。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。