spectral radiance increment

例句：

1. 1.The spectral radiance increment of the satellite is measured to determine its health status.
   卫星的光谱辐射增量被测量以确定其健康状况。
2. 2. The spectral radiance increment in the sky has been observed to be increasing due to the increase in solar activity.
   天空中的光谱辐射增量由于太阳活动增加而被观察到在增加。
3. 3. The spectral radiance increment from the sun's surface is used to calculate the temperature of the planet.
   太阳表面产生的光谱辐射增量用于计算行星的温度。