That is just going to be, if you look at this paraboloid from above, all you will see is the unit disk so it will be a double integral of the unit disk.

这就会变成…，如果俯视这个抛物面，所看到的就是单位圆盘，这就应该是单位圆上的二重积分了。

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One example that we did, in particular, was to compute the double integral of a quarter of a unit disk.

我们已经做过的一个例子是，计算四分之一单位圆上的二重积分。

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