美国宇航局戈达德宇航中心的研究人员绘制了第一套陆地植物荧光地图。微红的荧光是叶子释放出因光合作用产生的一种副产物。
Researchers at NASA's Goddard Space Flight Center have produced the first global maps of land-plant fluorescence, a reddish glow that leaves emit as a byproduct of photosynthesis.
在尘埃云中心的细丝发出微弱的红色荧光，这是由于一些尘埃微粒能有效地将恒星发出的不可见紫外线转换成可见的红光。
Central filamentsof the dusty clouds glow with a faint reddish photoluminesence as some dust grains effectively convert the star's invisible ultraviolet radiation to visible red light.
市中心秩序井然，街道定期扫除，一群身着带有荧光条的橘色背心的工人们组成为了扫除步队。
The city centre is a well-ordered place, with streets continually swept by an army of workers in fluorescent orange vests.
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