It may take a bit of time at the beginning, but once students get into it, they'll start to get confidence.
一开始可能会花点时间,但一旦学生们投入其中,他们就会开始获得信心。
For example, it used to take a bit of patience to put together the toys that children got in cereal boxes; now the toys come from the boxes whole.
例如,把孩子们从麦片盒里拿到的玩具组装起来需要一点耐心;玩具从盒子里拿出来时就是完整的。
你觉得这会花一些时间?
And that can take a little bit of trial and error."
VOA: special.2010.08.04
I mean they take up a teeny bit but essentially when we're thinking about the set up of the atom, we don't have to account for them as using up a lot of the mass we're discussing.
所以我们可以假设电子没有质量,它们占据了,非常小的一部分,所以当我们考虑,原子的构造的时候,不用考虑它们的质量。
So, that's probability density, but in terms of thinking about it in terms of actual solutions to the wave function, let's take a little bit of a step back here.
这就是概率密度,但作为,把它当成是,波函数的解,让我们先倒回来一点。
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