spectrum

• The resulting residual chromatism is known as secondary spectrum .
  所得到的剩余色差叫做二次光谱。
• Other series spectra for hydrogen have since been discovered .
  此后又发现了氢原子的其他光谱线系。
• Questions about norms and spectra are likely to be recalcitrant .
  有关范数和谱的问题多半是难解的。
• The conclusive evidence on their nature came from spectra .
  关于其性质的决定性证明是从光谱得到的。
• We have known much of the constitution of the solar spectrum .
  关于太阳光谱的构成，我们已了解不少。
• There is a curious feature in the spectra of spiral galaxies .
  在旋涡星系的光谱中有一种奇妙的特征。
• The spectrum is just an image of the star in various wave lengths .
  光谱正好是恒星在各个波长处的象。
• Variances associated with the spectra are also given in table 2-5 .
  表2-5中也给出了与光谱有关的偏差。
• The spectrum level of microseismic noise tends to peak at about 1/6 hz .
  微震的噪声谱在16赫趋于峰值。
• Then the effect is to steepen the flanks of the pulse spectrum .
  因此在效果上是加大了脉冲谱翼部的陡度。