In order terms, the Euclidean space time is a closed surface without end, like the surface of the Earth.

按规则来说，欧几里得空间-时间是一个没有尽头的闭合曲面，就像地球表面。

It just means the integral is over a closed  surface.

它只是意味着积分是在一个封闭的曲面上。

A Gaussian  surface is a three-dimensional closed surface.

高斯曲面是三维封闭曲面。

Uh … The imaginary closed Gaussian cylindrical  surface is made up of 3 surfaces.

呃… 假想的封闭高斯圆柱面是由3个曲面组成。

But here, the integral will always equal zero for a closed surface.

但在这里，对于闭合曲面，积分始终为零。

The idea that space and time may form a closed surface without boundary also has profound implications for the role of God in the affairs of the universe.

空间和时间可以形成一个没有边界的封闭表面的想法也对上帝在宇宙事务中的作用具有深远的影响。

A " closed surface" in this case is just the surface of any shape that completely encloses a charge, like a sphere or any other three dimensional shape.

在这种情况下，“封闭表面”只是完全包围电荷的任何形状的表面，例如球体或其他三维形状。

Maxwell's first equation is a form of Gauss's Law, which states that the electric flux through a closed surface is proportional to the total charge enclosed by that surface.

麦克斯韦第一个方程是高斯定律的一种形式，它指出通过封闭表面的电通量与封闭在该表面中的总电荷成正比。

I will also point out that, if the net charge  inside a closed Gaussian surface is zero, then the net electric flux through  the Gaussian surface is also zero.

我还要指出，如果封闭高斯曲面内的净电荷为零，则穿过高斯曲面的净电通量也为零。