When a reservoir is sufficiently large, a sphere of this hot rock forces its way up through the upper mantle to Earth's surface, creating a broad bulge in the topography.
当储层足够大时，这种炽热岩石的一个球体强行通过上地幔上升到地球表面，在地形上形成一个宽阔的隆起。
地球是一个球体。
We all know that the earth is a sphere.
我们都知道地球是一个球体。
Therefore, the atmosphere is merely a sphere.
因此大气层只不过是一个球体。
We have a sphere of radius a. I have my vector field.
先作出半径为a的球面，再画出给定的向量场。
The Earth is shaped like a sphere and composed mostly of rock.
地球的形状象个球体，大部分由岩石组成。
Do you have firsthand knowledge that the Earth is round (a sphere)?
你真的有第一手信息来说明地球是圆的(或一个球体)吗？
The geodesic dome is a structure shaped like a piece of a sphere.
球型屋顶是一个形状像球体的结构。
Does this mean space is shaped like a flat plane, a sphere or a saddle?
是不是这就意味着宇宙的形状就是平面、封闭球体或者马鞍状？
So, for a sphere, the normal vector is divided by the radius of the sphere.
关于球体，法向量是,除以球的半径。
Europe is declining as a sphere of military power as Asia is increasing.
欧洲的军事实力正在衰退，而亚洲正在崛起。
OK, so that's the definition of the surface of a sphere being simply connected.
这就是球面上，对单连通的定义。
Here is a complete example that displays two objects (a cube and a sphere).
下面是显示了两个对象(立方体和球体)的完整例子。
Any object with a simply connected surface can be smoothed out to look like a sphere.
任何具有单连通表面的物体都能简化成一个球体。
In three dimensions, a sphere is likewise symmetrical under all rotations about its center.
在三维空间中，球同样是中心对称的。
Two points determine a great circle on a sphere, so for any two points, cut the orange into half.
球面上的两点确定一条圆弧，因此任意两点可将橙子切成两块。
Spherification, where liquid is reshaped into a sphere whose "skin" is a gelled form of the liquid.
将流体改造成一种“皮肤”如液体形式的球体。
That is a very natural question. That looks a lot like somebody we know, like the volume of a sphere.
这是一个很自然的问题，我们好像对这个结果比较熟悉，它恰是球的体积。
Steen agrees: "I saw a sphere like the one in Kandinsky's Blue in one of my acupuncture sessions."
Steen也同意到“一次做针灸时我也看到了Kandinsky的《蓝》中那样的球形。”
Whether you have a disk or whether you have a sphere or whether you have a rod makes all the difference.
选择磁盘还是球体，或一根棒，结果都不同。
The great-circle distance calculates the shortest distance between any two points on the surface of a sphere.
大圆弧长计算球面两点之间的最短距离。
This projection provides data measured in meters across the globe, basing the shape of the earth on a sphere model.
这个投影基于地球的形状是球体模型的前提提供了以米测量的地球数据。
If the universe's space-time is positively curved, like the surface of a sphere, parallel beams would come together.
如果宇宙的时空像球体表面一样正向弯曲，平行的光线就会交合在一起。
That is, for example, what we do when we look at, say, a horizontal plane or a vertical plane or a sphere or a cylinder.
不妨想一想，考虑一个水平面，一个垂直面，或是一个球面时的做法。
Space can have positive curvature, like the surface of a sphere, or negative curvature, like the surface of a saddle.
空间可以向球面一样有正的曲率，也可以像马鞍面一样有负的曲率。
If we had a sphere, a solid sphere, then so here you have a solid sphere, and I rotate it about an axis through its center.
若是球体，实心球体，假设有个实心球体，将其绕着通过其中心，的轴旋转。
The source example in Listing 1 shows a simple world with Mars' gravity and a sphere that currently has some upward velocity.
清单1 中的源代码给出了一个简单的例子，这个环境中中存在火星的地心引力，里面有一个球具有向上的速度。
You take a sphere, in 3 dimensions, you rotate around the center of the sphere, and all those rotations leave the sphere alone.
那一个三维的球来说，无论你怎样把它绕中心旋转，它都会保持不变。
Let's say that I gave you a sphere of radius a centered at the origin, or maybe just half of that sphere or some portion of it.
已知以原点为心，以a为半径的球面，也可以说是半球面或是球面的一部分。
Let's say that I gave you a sphere of radius a centered at the origin, or maybe just half of that sphere or some portion of it.
已知以原点为心，以a为半径的球面，也可以说是半球面或是球面的一部分。
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