另外，所述感光性单体含二个以上的烯键式双键，可提高光敏感性并降低紫外线曝光量。
Additionally, the light-sensitive monomer contains more than two olefinic bonds, so that the light susceptibility is improved and the UV exposure is reduced.
紫外线的应用很广泛，如紫外线杀菌消毒，紫外线理疗，紫外线荧光分析和鉴别侦破，紫外线曝光光刻等。
As it is well known, the ultraviolet rays can be widely applied to disinfection, physical treatment, detdctive discrimination and exposure optical carving etc.
长曝光拍摄的图片中，大片的油污在紫外线下发出橙黄色的光，干净的沙子为紫色。这是海湾岛国家海滨沙滩上的情景。
Under UV light, tar from the Gulf of Mexico oil spill lights up orange-yellow on the beaches of Gulf Islands National Seashore (picture) while clean sand glows purple in a long-exposure picture.
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