顶点

Do some research to find the name of this conic and the how the words vertices, foci, centre and directrix relate to this shape.

做些搜索去找出这个二次曲线的名称以及顶点，焦点，中心点以及准线是怎样与这个图形有关的？

The surface generated by a straight line, the generator, passing through a fixed point, the vertex, and moving along a fixed curve, the directrix.

锥面由一条直线，即母线，通过一固定点，即顶点，沿一给定曲线，即准线，连续移动而产生的平面

Certain unhealthy festivals disaggregate the people and convert them into the populace.

两个干瘪的女人演着一台剧情发展已到顶点的滑稽戏，这是欢笑的胜利车。

Another way is to use the opcodes shown in d3dtypes.h and build your own vertex assembler/disassembler.

还有一个方法就是使用在d3dtypes.h中的操作码，写一个自己的顶点编译/反编译器。

Then we re-sampling all signals defined on the surface of the original triangle mesh at the vertices of the spherical subdivision mesh and get a set of discrete geometry signals with subdivision topology which can be compressed by using spherical wavelet.

于是，在参数域内位于细分网格顶点处对定义在参数网格表面上的各种几何信号进行重采样，可得到新的具有细分结构的几何信号近似表示原始几何信号，以此满足球面细分小波对处理对象的细分结构要求，从而使得用球面细分小波对几何信号进行压缩得以实现。

Such perception lasted until the creation of impressionism in the 19th century, particularly until the appearance of Seurat as a member of Divisionism, when such perception reached the peak.

这个历史一直延续到19世纪时的印象主义时代，具体来说到了点彩派的修拉为止，可以说是达到了顶点。

Also in the 3-D space, we assign the 20 amino acids to 20 vertices of the dodecahedron. By the symmetry of the dodecahedron we obtain 3-D representation of 20 amino acids, and 3-D graphical representation and the corresponding numerical sequence of protein sequences. And similarity and dissimilarity analysis based on the invariants of graphs and characteristics of numerical sequences are given for nine RNA secondary structures of RNA-3 of virus. We construct sequence phylogenetic tree of a group of cytochromes C protein.

在DNA三联体密码子表示的基础上，在半复平面上给出了蛋白质序列的非退化的2-D图形表示，同时利用复向量的主要特征—模和相位，给出了蛋白质序列的一种数值刻划，进一步在3-D空间里，把20种氨基酸分别分配给正12面体的20个顶点，根据正12面体的对称性得到了20种氨基酸的3-D表示，进而得到了蛋白质序列的3-D图形表示和对应的数字序列，并利用图的不变量和数字序列的特征比较了9种动物的神经元

This dot product value will be the same for all vertices that are on the same line perpendicular to the wave's direction.

对于在波的传播方向上一直线上的所有顶点来说，这个点乘值是相同的。

Once you're done editing those vertices you can switch back to draw mode.

一旦你完成编辑的顶点，您可以切换回绘制模式。

NiGeometry is an abstract class because it does not contain any information about how vertices are organized into drawable objects.

NiGeometry 是一个抽象类因为他不包含任何顶点被组织到渲染对象的信息

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐