R And we abbreviate that by calling it r, l by two quantum numbers, and an l as a function of little r, radius.

我们把它简称为，两个指定的量子数n和，它是半径小r的函数。

youdao

So if you look at the rod-- and we use the pendulum as our standard, l-- with length little l-- then you see the period will be the same if 1 1/2 R is little l...

所以如果你看杆子-,我们用摆作为标准，长度为-,你会发现如果,1，1/2，R等于l，周期相同。

youdao

Just because of this little physical l**r for many years, it seems some thin body.

正是因为这种体力劳动多年，似乎瘦了一些身体。

youdao

Just because of this little physical l**r for many years, it seems some thin body.

正是因为这种体力劳动多年，似乎瘦了一些身体。

youdao