- absorption spectrum吸收光谱，吸收频谱;
- a spectrum of连续的，连串的;
- broad spectrum antibiotic广谱抗生素;
- broad spectrum广谱;
- continuous spectrumn.连续光谱;
- electromagnetic spectrum电磁波频谱;
- line spectrum线（状）光谱，线（状）谱，（光）谱线;
- order of magnitude数量级;
- solar spectrum太阳光谱;太阳谱;
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