spectrum degradation

例句：

1. 1. The degradation of the spectrum is a complex process that affects the quality of the signal.
   光谱的退化是一个复杂的过程，影响信号的质量。
2. 2.In this study, we investigated the effects of environmental factors on the degradation of spectra.
   在这项研究中，我们调查了环境因素对光谱退化的影响。
3. 3. Spectral degradation is a concern in many fields, including medicine and engineering.
   光谱退化在许多领域都是一种关注，包括医学和工程学。