请问高手“apparent continuum ”到底是什么物理概念啊,

问题描述:

请问高手“apparent continuum ”到底是什么物理概念啊,
A comparison between low- and room-temperature spectra of NH3,by Vaida showed that the absorbance between the vibrational bands disappeared at 25 K.Ziegler concluded that the apparent continuum in the NH3,spectrum between the vibrational bands was simply due to Lorentzian tails of the vibronic transitions.

显然是连续的
意思是不能突变.任何一个物理量都不能突变,包括温度.总有一个过程