对于曲面积分，也已经知道如何计算。

And, surface integrals, we know also how to evaluate.

youdao

下面应该如何，在这样的曲面上建立通量的积分。

Now, how would we actually set up a flux integral on such a surface.

youdao

这个曲面积分，不是同一个向量场。

OK, and that surface integral, well, it's not for the same vector field.

youdao

总之，就是用几何方法或是在曲面上建立二重积分。

Use geometry or you need to set up for double integral of a surface.

youdao

总之，就是用几何方法或是在曲面上建立二重积分。

Use geometry or you need to set up for double integral of a surface.

youdao