Let's pretend that you are inside a spherical shell with a uniform density.

假设您在一个密度均匀的球壳内。

Icy objects formed beyond Neptune in a disk as well, and a lot of them were flung out to form a spherical shell around the Sun.

冰晶物质在海王星以外形成，它们中的很多都被抛散在外，围着太阳形成了一个球壳。

Now, as you are falling toward the center, the parts further from the center than you are form a spherical shell.

现在，当你向中心坠落时，比你离中心更远的部分形成了一个球壳。

Human herpesvirus 8 is a large double stranded linear DNA virus surrounded by an icosahedral capsid, which is a spherical protein shell made up of 20 equilateral triangular faces.

人类疱疹病毒8型是种巨大的双链DNA病毒，其外由一个二十面体的衣壳包围，其衣壳是由20个等边三角形组成的球状蛋白壳。

They are naked viruses, about 30 nanometers in diameter, and they're surrounded by an icosahedral capsid, which is a spherical protein shell made up of 20 equilateral triangular faces.

它们是直径约30纳米的裸露病毒，被二十面体衣壳包围；二十面体衣壳是由20个等边三角形面组成的球形蛋白质壳。

Unlike the orbits of the planets and the Kuiper belt, which are pretty flat like a disk, it's a giant spherical shell surrounding the Sun, planets and Kuiper belt objects like a big bubble with thick walls around our solar system.

与行星和柯伊伯带的轨道像圆盘一样平坦不同，它是一个巨大的球壳，围绕着太阳，行星和柯伊伯带的物体就像一个巨大的气泡，围绕着我们的太阳系。