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1·The ozone layer protects living things from harmful radiation of the ultra-violet ray from the sun.

臭氧层是保护所有生物来自于太阳的有害辐射和紫外线。

2·Water tank ultra violet ray insect lamp . diaphram strainer anti osmosis treatment kitchen equipmcm laundry equipment radiogenic waste water treatment.

菌器薄膜过泸器逆渗透处理厨房设备洗衣房设备放射性废水处理。

3·The lasers most people are familiar with are the green dots highlighting a PowerPoint presentation or the blue (actually closer to violet) light found in Blu-ray technology.

大多数人所熟悉的激光器是在做PowerPoint演示文稿时所使用的有着高亮度绿色圆点或着蓝色(其实更接近紫色)的紫激光技术。