spectral sequence of a fiber space

例句：

1. 1. The spectrum of the sun is visible to the naked eye.
   太阳的光谱肉眼可见。
2. 2. The scientist used a spectroscope to analyze the chemical composition of the sample.
   科学家使用分光镜分析样本的化学成分。
3. 3. Spectral analysis can help us understand the properties of materials.
   光谱分析可以帮助我们了解材料的性质。