The researchers tested their new black material with near-infrared radiation, just beyond the red end of the visible spectrum.

研究人员们使用仅仅超出可见光谱红端的近红外辐射测试他们的新“黑材料”。

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They suggest that their result may be connected with the fact that the colour of many fruits is at the red end of the spectrum.

他们称这一结果是因为很多果实的颜色都处于光谱的红色那一头。

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His bristly red hair was standing on end.

他粗硬的红头发根根直立。

《柯林斯英汉双解大词典》

Red Shirts and human rights groups condemned the government's use of deadly force to end the protests.

VOA: special.2010.05.22

So then, going from the initial to final states with a red path, ou start with an isobaric processand then you end with an isothermal process.

因此沿着,这条红色路径，你从一个等压过程开始,以一个等温过程结束。

麻省理工公开课 - 热力学与动力学课程节选

By the end,the professor says, the Red Shirts were continually changing their demands.

VOA: special.2010.05.22

That lengthens the wavelength of the light and shifts it towards the red end of the colour spectrum.

ECONOMIST: Fundamental physics

More distant objects are moving away from us - and each other - faster than nearer objects, which causes a shift of their apparent colour toward the red end of the spectrum - a "redshift".

BBC: Dark energy camera snaps first images ahead of survey

This refraction eliminates both the red end of the spectrum (red light is not bent enough by the air layer to form part of the second image) and the blue frequencies (which are scattered away: this selective scattering is why the sky is blue).

ECONOMIST: In a flash