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| Shining a Light on Water to Prevent Infections | |
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心晴lily 等级 贵宾 楼主 发表于 2012/3/23 23:54:08 编 辑 |
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Some water purifiers use ultraviolet light to destroy harmful organisms. This is the VOA Special English Development Report. Viruses, bacteria and other organisms in dirty water sicken hundreds of millions of people every year. Yet there are many different water-treatment technologies available. Some systems use ultraviolet light to destroy harmful organisms. One product that disinfects water with UV light is called AquaStar, made by Meridian Design. http://voaeng.c0n.us/voa/article/article_173.html |
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