来自 spectrum,光谱，specter,鬼的，幽灵的，-al,形容词后缀。

1. She is compelling, spectral, fascinating, an unforgettably unique performer.

她极具吸引力，清幽如鬼魅，令人着迷，令人难忘，是个独具特色的演员。

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2. 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.

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3. The spectral sensitivity of various cells is very different.

各种光电管的分光灵敏度是很不相同的.

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4. Colour filters are not very effective in isolating narrow spectral bands.

一些滤色片不能很有效地分离狭窄的光谱带.

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5. Total radiation instruments employ some broad spectral band sensors.

全辐射仪器要使用某些宽频带传感器.

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