spectral characteristic measurement

例句：

1. 1. The spectral characteristic measurement of the satellite is crucial for its navigation system.
   卫星的光谱特性测量对于其导航系统至关重要。
2. 2. The spectral characteristic measurement is used to determine the composition of the sample.
   光谱特性测量用于确定样本的成分。
3. 3. The spectral characteristic measurement was performed using a spectrometer.
   光谱特性测量是通过光谱仪进行的。