"N" is the number of all possible different authorization levels, each one associated with a locally valid service identity.

“n”是所有可能的不同授权级别的数量，每一个都关联一个本地有效服务身份。

youdao

So in talking about the hydrogen atom, they actually have different names for different series, which means in terms of different n values that we end in.

所以就氢原子来说，它的每个系都有不同的名字，代表了不同的末态n值。

youdao

We receive shipments o n Tuesday and Saturday, which means that we have different items in the store at least twice a week.

我们通常在周二和周六安排发货，这就意味着一个店面的在一个星期内至少更新两次。

youdao

If you look at the ground state in two different systems -If you look at the ground state which is n equals one, think about this, if I increase the proton charge, the Coulombic force of attraction is greater.

如果你观察两个不同系统的基态,当你观察n，等于1的基态时，试想一下，如果我增加质子电荷，相互吸引的库仑力就会更大。

麻省理工公开课 - 固态化学导论课程节选

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