spectrum

n.

1. 光谱
   • This is a kind of atomic spectrum.
     这是一种原子光谱。
   • the set of bands of coloured light into which a beam of white light may be separatedMany insects can perceive colours of the spectrum that are invisible to us.
     许多昆虫能感觉到光谱中我们所看不见的颜色。
2. 波谱
3. 范围, 系列