spectral emissive power

例句：

1. 1.The spectral emissive power of the star is measured in units called watts.
   这颗星的光谱辐射功率以瓦特为单位进行测量。
2. 2. The scientist used a special instrument to measure the spectral emissive power of the light.
   科学家使用一种特殊的仪器来测量光的光谱辐射功率。
3. 3.The study of spectral emissive power can help us understand the behavior of stars and planets.
   研究光谱辐射功率可以帮助我们了解恒星和行星的行为。