spectrum
['spektrəm]
n. [物]光谱；[电信]频谱；范围；[心]余象
参考例子
1.The professor took a spectrum analysis in class.
教授在课堂上做了一次光谱分析。
2.But why is the Hate side of the spectrum so large?
但是为什么光谱的黑暗面也会那么大面积呢？
3.Motion of a star across the line of sight causes no change in its spectrum.
恒星横越视线方向的运动，在它的光谱中不会引起什么变化。
英文解释
n.
1.an ordered array of the components of an emission or wave
2.broad range of related values or qualities or ideas or activities
网络释义
Spectrum
频谱; 音域，频谱; 谱，光谱，波谱; 光谱，光系，谱;
line spectrum
线状谱; 线状光谱，线状谱; 线状光谱; 线光谱;
Mass spectrum
质谱; 质谱图; 质量光谱; 质量谱：;
spread spectrum
扩频; 展频; 扩频,扩展频谱; 设置主频频率调整范围;
frequency spectrum
频谱; 频率谱; 频率图谱; 频[率]谱;