The infra - red spectra of quinones present a number of interesting features.

醌类的红外光谱具有一些有趣的性质。

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The infra-red spectra showed that the main chromophoric groups (conjugated carbonyl groups) were destroyed by bleaching agents, which was the main reason of brightness incremsent.

红外光谱表明，主要发色基团（共轭羰基）被漂剂破坏，这是提高浆白度的主要原因。

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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。

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Dr Webb's team found that, even after correcting for this red shift, the dark lines in the quasar spectra did not appear at the same wavelengths as they do in laboratories on earth.

ECONOMIST: Fundamental physics

In the quasar spectra, some of the dark lines were shifted slightly towards the red end of the colour spectrum and others towards the blue end.

ECONOMIST: Fundamental physics