也就是说，常温会，激发分子的一些转动能级。
In other words, ordinary thermal energies do populate some number of rotational levels of molecules.
事实上，转动能级的间距，相对于室温的kT是很小的。
Turns out that, in fact, the energy separation between rotational levels is very small compared to kT at room temperature.
但是对于转动能级，分子并不总是处于最低能级。
But rotation, for sure. They're not all in the lowest level.
拉曼光谱是一种分子散射光谱，通过与分子相互作用的光子产生的表征分子振动或转动能级差的特征频移，来反映分子结构或成分的信息。
Raman spectrum is a kind of molecule scattering spectroscopy, which is characterized by the frequency excursion that caused by interactions of molecule and photon to show the information of molecule.
拉曼光谱是一种分子散射光谱，通过与分子相互作用的光子产生的表征分子振动或转动能级差的特征频移，来反映分子结构或成分的信息。
Raman spectrum is a kind of molecule scattering spectroscopy, which is characterized by the frequency excursion that caused by interactions of molecule and photon to show the information of molecule.
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