Correct

光谱

/ guāngpǔ / 
Strokes

Definition

spectrum

Example

As a Noun

(optical) spectrum

1
Xīshōu
吸收
guāngpǔ
光谱

absorption spectrum

2
Tàiyang
太阳
guāngpǔ
光谱

solar spectrum

3
Húguāngpǔ
弧光谱

arc spectrum

4
Hóngwài
红外
guāngpǔ
光谱

infrared spectrum

5
Fùguāngpǔ
复光谱

complex spectrum

6
Dài
带
guāngpǔ
光谱

band spectrum