especially if you have a computer to help you out;

尤其在计算机的辅助下
but it's not an intellectual challenge,

这几乎不需要动用脑子
it's just work. Right?

只是普通的计算罢了
Using pretty heavy-duty math,

通过大型数学计算
people got the Nobel Prize for developing it;

这是得过诺贝尔奖的工作
or a canned program, --that's what they got the Nobel Prize for

或者叫做封装程序他们靠这个得诺奖
you can go the other way

可以反过来计算
and go from the X-ray pattern to what it was that was causing it.

从衍射图案反推出晶体结构
What we did was go from what's causing it to the pattern,

我们刚刚只是从晶体结构推出衍射图案
but in fact you can go the other way now

而其逆过程也是同样可行的
when you press a button on a machine.

只要运行相应的程序就可以了
And you get out the electron density at every point in space.

这样就可以得到空间中的电子分布图