spectral

英['spektrəl]美['spektrəl]

a. 光谱的,鬼怪的

副　词：spec'trally

同：	[a.] apparitional, ghostlike, ghostly, phantasmal

The cheapest way to get one is to invoke the spectral theorem and to conclude that normal operators always have non-trivial invariant subspaces
取得这样结果的最省力的尝试是引用光谱定理而得到正规算子恒有非平凡不变子空间的结论。收藏
Natural spectral peaks of the vocal tract that aid in the recognition of speech sounds
声道的自然频谱峰值,帮助语音识别。收藏
The CIE system is based on three theoretical primaries, mixtures of which can be found that match all the spectral colours.
它采用三个理想的光原色;所谓理想的光原色是指它们的混合可造成光谱上的各种颜色.收藏
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。收藏
The reason for the differences in the spectral purity with regard to longitudinal mode content of the lasers is still not clear
关于这种激光器中，造成纵模成分的纯度有差别的原因，现在仍不清楚。收藏

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