你们知道怎么计算它。
那么,怎么计算这个二重积分呢?
你们知道了怎么计算它。
But I'm sure you can easily see how these styrofoam balls could, in fact, be a mono layer of gold nuclei.
这个实验怎么工作的,我们先来做些计算,但我相信你们都已经。
That's an idea that struck people intuitively at various times in history, but they didn't know how to do these calculations.
在历史上,人们很多次,直觉地感知到了这一点,但是他们不知道怎么去计算
OK. Now. Think for a second about computing the average age of the faculty.
好,想想怎么,计算全体教员的平均年龄吧。
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