So now we're just counting up our orbitals, an orbital is completely described by the 3 quantum Numbers.

所以现在我们只要把这些轨道加起来，一个轨道是由3个量子数完全确定的。

youdao

Remember, we need those three quantum Numbers to completely describe the orbital.

要知道，我们需要三个量子数，才能完全描述一个轨道。

youdao

So, molecular orbital theory, on the other hand, is based on quantum mechanics.

另一方面分子轨道理论，是基于量子力学的。

youdao

So now we're just counting up our orbitals, an orbital is completely described by the 3 quantum numbers.

所以现在我们只要把这些轨道加起来，一个轨道是由３个量子数完全确定的。

麻省理工公开课 - 化学原理课程节选

The reason there are three quantum numbers is we're describing an orbital in three dimensions, so it makes sense that we would need to describe in terms of three different quantum numbers.

我们需要，3个量子数的原因,是因为我们描述的是一个，三维的轨道，所以我们需要，3个不同的量子数,来描述它。

麻省理工公开课 - 化学原理课程节选

So, molecular orbital theory, on the other hand, is based on quantum mechanics.

另一方面分子轨道理论，是基于量子力学的。

麻省理工公开课 - 化学原理课程节选