The pigeonhole principle states that if more than n pigeons are placed into n pigeonholes, some pigeonhole must contain more than one pigeon.

鸽子洞原理认为，如果有超过n只鸽子要放入n个鸽子洞中，有一些鸽子洞就要装进2个以上的鸽子。

youdao

l So, if we're talking about a 4 p orbital, and our equation is n minus 1 minus l, the principle quantum number is 1 4, 1 is 1 -- what is l for a p orbital?

我们方程是n减去1减去，主量子数是，4，1是1，--p轨道的l是多少？,学生

youdao

On the basis of test count, the complete C-R-S-N curve is worked out according to the principle of statistics. so as to provide basic data for gear design.

在试验数据的基础上，根据统计学原理，拟合出完整的C - R - S - N曲线，并获得各种可靠度下的弯曲疲劳曲线，从而为国产材料齿轮设计提供了必要的基础数据。

youdao

We didn't just need that n, not just the principle quantum number that we needed to discuss the energy, but we also need to talk about l and m, as we did in our clicker question up here.

我们不仅需要ｎ,不仅要这个可以,决定能量的主量子数，还需要ｍ和ｌ,就像我们做这道题这样。

麻省理工公开课 - 化学原理课程节选

So, there are 2 different things that we can compare when we're comparing graphs of radial probability distribution, and the first thing we can do is think about well, how does the radius change, or the most probable radius change when we're increasing n, when we're increasing the principle quantum number here?

当比较这些径向概率分布图,的时候，我们可以比较两个东西，第一个就是考虑当我们增加ｎ,当我们增加主量子数的时候，半径怎么变，最可能半径怎么变化？

麻省理工公开课 - 化学原理课程节选

l So, if we're talking about a 4 p orbital, and our equation is n minus 1 minus l, the principle quantum number is 1 4, 1 is 1 -- what is l for a p orbital?

我们方程是n减去1减去，主量子数是，4，1是1，--p轨道的l是多少？,学生：

麻省理工公开课 - 化学原理课程节选

And of course, the principle at stake at the U.N. was really important, and that is the safety and security of diplomats around the world, and countries meeting what is an absolutely fundamental diplomatic obligation -- and that is to respect the privileges and immunities and safety of the diplomats around the world from civilized countries.

WHITEHOUSE: Press Briefing

Besides addressing the General Assembly, Jiang spoke to a discussion group at U.N. headquarters, where he defended the principle of national sovereignty against the notion that it could be transcended by human-rights concerns.

CNN: Jiang On a Roll

The "agreement in principle, " as Senate Budget Committee Chairman Kent Conrad, D-N.

FORBES: A Deal On The Bailout