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emission spectrum

/ɪˈmɪʃən ˈspɛktrəm/

翻译: 物质中的原子或分子从激发态跃迁到较低能态时发射的电磁辐射的波长分布,常用于光谱学中识别元素。

1 个条目

phrase

/ɪˈmɪʃən ˈspɛktrəm/C1formalscientific
  • zh物质中的原子或分子从激发态跃迁到较低能态时发射的电磁辐射的波长分布,常用于光谱学中识别元素。

The range of wavelengths of electromagnetic radiation emitted by a substance when its atoms or molecules transition from an excited state to a lower energy state, often used in spectroscopy to identify elements.

  1. Light from excited atomsC1formal

    The range of wavelengths of electromagnetic radiation emitted by a substance when its atoms or molecules transition from a higher to a lower energy state.

    zh受激原子发出的光

    • The emission spectrum of hydrogen shows distinct lines in the visible range.
    • Scientists use emission spectra to identify elements in distant stars.
    • Each chemical element has a unique emission spectrum.