spectral signature meaning in Chinese

光谱特征
光谱信号

The algorithm has been successfully tested for the signal - peak spectral signature pollutant methanol and ammonia as the representative of multiple - peak spectral signature pollutants
这一方法为在快速移动背景下的污染气体探测识别提供了一种快速简便的手段。
In many stellar disks , observers also have found the spectral signature of silicate emission , indicating that small dust grains on the disk surface have been strongly heated by the stellar radiation
天文学家也发现了许多恒星气盘具有矽的发射光谱，表示盘面上的微小尘埃颗粒已被恒星辐射强烈加热。