Digital camera to use commonly CCD photographic, sunshine for it is not CCD wavelength is accepted, so the use ultraviolet filter is not obvious.

数码相机一般使用CCD来感光，阳光波长对于CCD来说是不会被接受的，所以紫外线滤镜的用处已经很不明显了。

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This would include in-line instrumentation, flow meters, regulating valves ultraviolet lights, pumps, pump seals, filter membranes, gasket and seal materials, and other specialized in-line devices.

该项包括在线仪器、流量计、调节阀、紫外光、泵、泵的密封件、过滤膜、垫圈和密封材料以及其他特殊的在线设备。

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Result the flora number in air before and after ultraviolet disinfection had statistical significance, while the flora number in the surface of air-condition's filter had no statistical significance.

结果紫外线消毒前后，手术室空气菌落数的差异有统计学意义，空调滤尘网表面菌落数的差异无统计学意义。

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It acts as a sunlight filter, shielding life on Earth from harmful ultraviolet rays that put humans at greater risk of skin cancer and cataracts and harm marine life, the agency said.

CNN: Ozone hole grows in 2008

UTC's solution: Pass the return air through an aluminum filter sprayed with titanium dioxide that, hit with ultraviolet rays, sets off a chemical reaction that breaks down nasty organic compounds like benzene and formaldehyde into carbon dioxide and water.

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