1·The spectra show that the stars must have swallowed such planets during their expansive, red-giant stage.
光谱显示，这些恒星在膨胀的红巨星阶段肯定曾经吞没过这些行星。
2·Spectroscopy is basically the study of spectra and spectral lines of light, and specifically for us, the light from stars.
光谱学基本上是一种研究光谱和光谱线的学科，特别对我们来说，是研究恒星发出的光。
3·The IR spectra of hydrogel, alcogel and aerogel of BaFe12O19 were studied.
对钡铁氧体的水凝胶、醇凝胶以及气凝胶的红外光谱进行了研究。
4·But spectra gathered in these ways are too localized and too precise to build up the fuzzy big picture needed for comparison with the distant planetary dots turned up by astronomers.
但是利用这种方法收集的光谱地点局限性强，而且很难构建用于同天文学家所提出的远地点行星进行比较的整体画面。
5·Also, the Raman spectroscopy analysis showed that the ancient and recent skin spectra were very similar, indicating that the molecular structure of the mummy s skin was largely unchanged.
同时，拉曼光谱分析显示古代皮肤与现代皮肤的光谱非常类似，这表明木乃伊皮肤的分子结构基本没有发生变化。