light spectrum

短语

[计] 光谱

词形变化

light spectra light spectrums 复数 light spectrums light spectra 复数

释义与例句

n.
  1. 1.

    The portion of the electromagnetic spectrum that is visible to humans.

    物理
  2. 2.

    an extension of the human-visible spectrum to include near-visible wavelengths, primarily near infrared.

    物理

词源

From light (“visible”) + spectrum (“range of electromagnetic wavelengths”).

来源：wiktionary