1、

But when supermassive black holes at the center of a galaxy feed, the material falling into them heats up, giving off a bright glow across the electromagnetic spectrum. Infrared light in particular is good to look for when black-hole hunting.

然而,当星系中心质量超级大的黑洞“吞食”时,落入其中的物质便会升温,发出一道明亮的光,通过电磁波频谱可以显示出来。在黑洞“捕捉”物质时,红外线尤其容易被找到。

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2、

Infrared radiation has wavelengths longer than those of visible light.

红外辐射的波长比可见光的波长长.

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3、

Night-vision goggles, there are two, one is low-light night-vision goggles, one is infrared night-vision goggles.

夜视镜有两种, 一种是微光夜视镜, 一种是红外夜视镜.

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4、

The team also used a 200 W infrared pulsed laser to light the experiment.

这个小组还使用200W的红外脉冲激光为实验照明.

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5、

The protection system of light-beam formed emission and receiving of infrared ray is introduced.

介绍了利用红外线的发射与接收所构成的光束保护系统.

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6、

Thermal radiation ranges in frequency from infrared rays through visible light to ultraviolet rays.

热辐射的频率范围从低频的红外辐射到高频的紫外辐射.

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7、

Infrared light emitting diode is used to deliver appropriate light pulse with a very short turn-off time in the range of 0.5~ 1 micro-s-econd.

利用红外发光二极管作为闪光源,获得了合适的光强和0.5~1微秒的短余辉。

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