The tangent, binormal, and normal attributes represent the coordinate axes of the tangent space surrounding each vertex. 切线，副法线和法线代表了每个顶点的切线空间的三个轴。
An application programmer must supply a tangent, binormal, and normal at each vertex. 程序员必须提供每个顶点的切线、副法线和法线。
The main causes of dystocia of vertex presentation were occiput malpresentation, macrosomic infant, uterine atony, abnormal pelvic and genital tract. 导致头位难产的主要因素依次为胎头位置异常、巨大儿、宫缩乏力、软产道及骨产道异常。
First, the vertexes are sequenced according to their curvature to form a descending order vertex array.The rearer vertex has smaller local curvature. 首先对所有顶点按照曲率大小进行排序，形成按照降序排列的顶点集，顶点越靠后，其周围局部曲率越小。
Explain the difference between power and vertex power from basic definitions of optics, and analyze the measuring principle and error of focimeter. 从光学的基础定义出发，阐述光焦度和顶焦度的差别，并对焦度计的测量原理和误差进行正确分析。
In this paper, we study the minimum-weight feedback vertex set problem in outerplanar graphs and present a linear time algorithm to solve it. 本文主要考虑外平面图中的反馈点集并给出了一个求外平面图最小顶点赋权反馈点集的线性时间算法。
Objective：To confirm that the lensometer adjusted by the special lenses group for contact lenses cant express the back vertex power of contact lenses. 证实采用接触镜专用标准透镜组标定的焦度计不能准确测定被测角膜接触镜的顶焦度。
The kings prblems in semicomplete digraphs without vertices whose in-degree are zero and locally semicomplete digraph under some conditions are discussed chiefly in the paper. 其中,主要讨论了不包含内度为零的顶点的半完全有向图和满足若干条件下的局部半完全有向图中王的问题。
All graphs are finite simple undirected graph with no isolated vertices in this paper. It is completed the classification of graphs on which a semidihedral group acts edge-transitively. 运用图的自同构理论，获得了关于半二面体群边传递的图Γ的完全分类。
Take 10 golden triangles, arrange them with their sharp points touching, and you have a golden decagon, fitting perfectly within the iris of the eye, vertices neatly touching the rim. 画10个金三角，把它们的顶点挨着排好，然后你就得出一个金十边形，与瞳孔中的虹膜完美地一致，十边形的最早点正好在眼眶。
When two lines meet at a point, or vertex, an angle is formed.
当两条线相交在一点，即顶点时，就形成了一个角。
英语科技文选
V stands for vertices, E for edges, F for faces.
V 代表顶点，E 代表边，F 代表面。
潘潘
He would watch the vertex from his window and make vespers for several minutes.
然后，他会从窗子望出去看着天顶，并作几分钟晚祷。
精选英语短文
These two stars, which form the vertices of the Summer Triangle along with Deneb, are clearly visible during summer from places in the mid-northern latitudes.
这两颗恒星和天津四一起构成了夏季大三角，在夏季从中纬度地区可以清晰地看到。
TED-Ed（视频版）
Here’s a closer look at what happens when we make the folds at this vertex.
下面仔细看看我们在这个顶点做折叠时会发生什么。
TED-Ed（视频版）
Here's a closer look at what happens when we make the falls at this vertex.
下面仔细看看我们在这个顶点坠落时会发生什么。
202325
These diagrams, depicting interactions between particles as lines and vertices, transformed the field by providing an intuitive way to visualize and calculate particle interactions.