Let's assume that the atmosphere goes up 1000 km above the Earth (when it is a sphere), and so is a sphere itself of radius 6400km+1000km=7400km.

让我们做个假定，如果大气层高过“地球”（如果确是球体的情况下）1000公里的话，那么地球本身的半径6400公里+1000公里=7400公里。

youdao

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。

youdao

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。

youdao

"Whether it's the fight against international terrorism, whether it's cooperation in space, exchanges in health and ecological sphere;

VOA: standard.2010.05.07

And Milton uses the language of these two parables to get at this problem that has resonances in every conceivable sphere.

弥尔顿用这两则寓言来解释,可以想象出的与此有共鸣的问题。

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But remember that we need to multiply it by the volume here, the volume of some sphere we've defined.

但记住我们需要把它乘以体积，乘以一个我们定义的壳层的体积。

麻省理工公开课 - 化学原理课程节选

And I think the political sphere is probably tougher than a lot of the private sphere.

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Shirkey says it highlights that the Internet is a private sphere, not a public sphere, that tolerates public speech.

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We have learned that post-conflict reconstruction requires a balance of efforts in the military sphere and the civil sphere.

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