Wavelength of infra-red radiation is longer than that of ultra-violet radiation. 红外线的波长比紫外线的波长较为长。
The main source of vitamin D is exposure to ultra-violet radiation in sunlight, which produces vitamin D in the skin. 维生素D的主要来源是通过阳光中的紫外辐射在皮肤中合成的。
The optical properties indicate that AIN is a good shielding materials of ultra-violet radiation. 光学性质计算结果表明:氮化铝半导体是一种良好的屏蔽紫外辐射的材料。
Effects of ultra-violet radiation on the germination of sclerotia and the speed of apothecial development of Sclerotinia sclerotiorum ( lib. ) de Bary 紫外光对菌核(SclerotiniaSclerotiorum(Lib.)debary)萌发和子囊盘形成速度的影响
Study on Ultra-Violet Light Radiation Cross-Linking PVC and its Properties PVC的紫外光交联及性能研究