flux density spectrum

例句：

1. 1.The flux density spectrum of the solar wind is a key to understanding the dynamics of the solar system.
   太阳风的流密度谱是理解太阳系动态的关键。
2. 2.The flux density spectrum of the cosmic microwave background radiation is used to measure the temperature of the universe.
   宇宙微波背景辐射的流密度谱被用来测量宇宙的温度。
3. 3. In this study, we analyze the flux density spectrum of the radio waves from the pulsar and compare it with theobserved data.
   在这项研究中，我们分析了来自脉冲星的无线电波的流密度谱并将其与观测数据进行比较。