The origins of stars of differing spectral types must be dissimilar.
不同光谱型星的起源必然是不一样的。
A convenient classification of stars is based upon the observed sequence of spectral types.
一种实用的恒星分类法是基于测得的光谱类型序列。
In order to obtain higher measured accuracy of star's positions by the low-latitude meridian circle, it is needed to measure the astronomical refraction to the stars of different spectral types.
提出在低纬子午环上，对不同光谱型的天体测定出天文折射，以提高星位测定的精度。
Different types of digitally modulated signals that have similar, if not identical, power spectral density functions can have highly distinct spectral correlation functions.
一些不同的数字调制信号有着相同或相近的功率谱密度，但它们的谱相关函数却有明显区别。
As each historical figure or a certain type of person has an approximate spectral type, like sing, play music to the music, so called "types of facial makeup in operas".
由于每个历史人物或某一种类型的人物都有一种大概的谱式，就像唱歌、奏乐都要按照乐谱一样，所以称为“脸谱”。
As each historical figure or a certain type of person has an approximate spectral type, like sing, play music to the music, so called "types of facial makeup in operas".
由于每个历史人物或某一种类型的人物都有一种大概的谱式，就像唱歌、奏乐都要按照乐谱一样，所以称为“脸谱”。
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