杰米给我发了一封电子邮件说他不能来了。
当问到他的 iPad 中有什么时,Flake 在电子邮件中说:“我日前装了一款'记事本'的应用程序。”
Asked what's on his iPad, Flake e-mailed: "I have a 'notepad' app that I checked the other day."
当然了,它是一本电子书,但是你知道我们说的是什么。
De Broglie, 1924, in his PhD thesis says if an electron has wavelike properties this would be its wavelength.
德布罗意,1924年在他的博士毕业论文中说到,如果一个电子有类似波的性质,这就是它的波长。
That might seem confusing if you're thinking about particles, but remember we're talking about the wave-like nature of electrons.
如果你们把它想成是一个粒子的话是很矛盾的,但记住我们这里说的,是电子的波动性。
And then the potential energy, the energy is stored here due to the coulombic force of attraction between the electron and the nucleus.
然后说势能,位能其实就是,由电子和原子核之间的库仑引力而形成的能量。
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