D This distance I will measure for you, d.
下面我来为大家测量一下距离。
a perfectly spherical shell dr at some distance, thickness, d r, dr we talk about it as 4 pi r squared d r, so we just multiply that by the probability density.
在某个地方的完美球型壳层,厚度,我们把它叫做4πr平方,我们仅仅是把它,乘以概率密度。
In particular, some upper bounds of the vertex arboricity of the integer distance graph G(Z, D) are obtained when D is a set of positive integers and Z the set of all integers.
特别地,当D是某正整数集合,Z是整数集时,得出了整数距离图G(Z ,D)的点荫度的几个上界。
They thought the wildlife and distance from Washington,D.C.
VOA: special.2009.10.06
But if we could statistically control for every other variable, all I'd need to do is measure the distance from your door to everybody else's door on campus and I could chart out who's going to fall in love with whom on the Yale campus.
如果我们能精确地控制其他可变因素,那么只需要测测距离,你宿舍门到其他宿舍门的距离,我就能够计算出,校园里谁爱上了谁。
r And what that is the probability of finding an electron in some shell where we define the thickness as d r, some distance, r, from the nucleus.
在某个位置为,厚度为dr的壳层内,找到原子,的概率,我们来考虑下我们这里所说的。
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