Cephalic, or head-first, is the first type, and furthermore the most common and optimal presentation for easy delivery is a type of cephalic presentation called vertex, which includes complete flexion of the head as well.

头先露，第一种类型；进一步说，对于顺产来说最常见的、最佳的先露，是一种称为顶先露的头先露，包括完整的头部俯屈。

When two lines meet at a point, or vertex, an angle is formed.

两条线相交在一点，即顶点时，就形成了一个角。

So we can see here it says, " Consider reducing the number of triangles and consider reducing the work in the vertex shader."

“考虑减少三角形的数量，并考虑减少顶点着色点的工作。”

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，在夏季从纬度地区可以清晰地看到。

If I hover over the vertices row, here I can get an idea of, OK, what's the summary for that draw call for the vertices submitted to the scenes?

如果我在顶点行上面悬停，我就能够了解那个顶点的绘制调用提交到场景的总数是多少？

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。

But thinking of colors on the cube, you're naturally led to an interesting combinatorial question: Is there a way to color the cube so that the three neighbors of any given vertex will always represent red, green and blue.

但想到立方体上的颜色，你会自然地联想到一个有趣的组合问题：是否存在一种给立方体上色的方法，使得任何一个顶点的三个邻接面总是代表红、绿、蓝三种颜色。

Additionally, if you're curious as to how video game graphics work, we have a separate video that explores all the steps such as vertex shading, rasterization, and fragment shading.

另外， 如果你好奇视频游戏画面是如何工作的，我们有一段单独的视频详细介绍了所有步骤，比如顶点着色、光栅化和片段着色。

Three, you say, well, look, it's got four electric and four magnetic because you associate the faces with electric and you associate with the vertices with the magnetic.

你说有四个电的和四个磁的，因为你把面与电联系起来，把顶点与磁联系起来。

You're going to just basically put a toll keeper at every single node and every single graph edge, every node, every vertex, every edge.

你基本上就是在每个节点和每条图边， 每个节点， 每个顶点， 每条边上都设置一个收费员。

V stands for vertices, E for edges, F for faces.

V 代表顶点，E 代表边，F 代表面。

Dou Zhi Li is split into 10 different stages, and when the body acquires 10 stages of Dou Zhi Li, it can better condense the Dou Zhi vertex, becoming a well-respected Dou Zhe!

斗智力分为十个不同阶段， 身体获得了十个阶段的斗智力之后， 就可以更好的凝聚斗智顶点， 成为备受尊崇的斗者！

When the sixpointed star was laid perfectly over the Great Seal of the United States, the star's top vertex fit perfectly over the Masonic all-seeing eye ...

六角星完美地铺设在美国国徽上时, 这颗星的顶点完美地贴合在共济会全视之眼上。

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。

So let's focus on a single vertex.

所以让我们专注于一个顶点。

So the total number of vertices here  would not be N but N plus N choose four total intersection points.

所以这里的顶点总数不是N，而是N加上n选4的总交点数。

Let's begin with the first step, called vertex shading.

让我们从第一步开始，叫做顶点着色。

Or I could put a tail on that, and that would be another edge, another vertex.

或者我可以在那上面加一条尾巴，这样就多了一条边和一个顶点。

You attach numbers to every vertex in the following way.

您以如下方式为每个顶点赋予编号。

But the key is to treat this as a new graph  where those intersection points are them vertices.

但关键是要将这视为一个新的图，其那些交点就是顶点。