She's a flower, she's perishable, she's half hidden, - and she's ultimately dead and in the ground-- whereas a star would seem to be something that she just can't be mapped onto if she is this half-hidden thing.

她是一朵花，是易腐烂的，有一半深埋在土里，最终凋谢回归土地-,如果她一般在土里,她就不可能是星星。

耶鲁公开课 - 文学理论导论课程节选

It is telling us that the ground state in lithium would be Z squared.

它告诉我们锂原子的基态,是z的平方。

麻省理工公开课 - 固态化学导论课程节选

So, if, for example, we were looking at a hydrogen atom in the case where we have the n equals 1 state, so the electron is in that ground state, the ionization energy, it makes sense, is going to be the difference between the ground state and the energy it takes to be a free electron.

电离氢原子所需要的能量,如果我们看n等于1的情况,电子在基态，那电离能，很合理的就是基态,和自由电子态的能量差。

麻省理工公开课 - 化学原理课程节选