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TOEFL IELTS BNC: 3581 COCA: 3893
spectrum
spektrəm ˈspɛktrəm
Word forms: plural spectra, plural spectrums
1 N-SING 光谱 The spectrum is the range of different colours which is produced when light passes through a glass prism or through a drop of water. A rainbow shows the colours in the spectrum. 光谱
2 N-COUNT [usually singular] 系列;范围 A spectrum is a range of a particular type of thing. 系列;范围

  • She'd seen his moods range across the emotional spectrum.

    她见识过他的情绪波动会有多大。

  • Politicians across the political spectrum have denounced the act.

    各党派的政客们都对该行为表示谴责。

  • The term 'special needs' covers a wide spectrum of problems.

    “特殊需求”一词包含的问题范围很广。

3 N-COUNT 波谱(如光波波谱、无线电波波谱等) A spectrum is a range of light waves or radio waves within particular frequencies. 波谱(如光波波谱、无线电波波谱等)

  • Vast amounts of energy, from X-rays right through the spectrum down to radio waves, are escaping into space.

    大量的能量，从 X 光直到无线电电波，都正被泄露到太空中去。

  • The individual colours within the light spectrum are believed to have an effect on health.

    光谱中不同的颜色被认为对健康有不同的影响。

  • ...the ultraviolet spectra of hot stars.

    热星的紫外光谱

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