There a a beautiful sapphire colour tone.

有一个美丽的蓝宝石色彩基调。

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Natural gray diamonds occur within a specific region of colour tone.

天然灰色钻石发生在一个特定的地区色彩基调。

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The application of visual reflectance, colour tone, saturation degree and colorimetric coordinates of colour index are all useful for qualitative observation.

本文阐述了颜色指数的视觉反射率、色调、饱和度、色度坐标在定性观察方面的应用。

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After several hours of this, learning the difference between a four-day-old horse and a cow carcass - the colour, smell, and muscle tone - the kind lady who showed us round, led us to a warm room where we could remove our hair nets and overalls and take comfort in a bowl of vegetable soup.

BBC: Horsemeat scandal: Noble animal at centre of Romanian life

Pilot studies had shown that what might seem an obvious fourth procedure, to tone down, rather than enhance feather colour, was too damaging to work.

ECONOMIST: Male birds cannot afford to relax their standards

Freeze-frame, slow motion, colour filters and smoke give the film a distinctly undigital tone, viscous and personal, that focuses attention on the excellent performances of Kyra Sedgwick, Parker Posey and Fairuza Balk.

ECONOMIST: New talent, new techniques