Because of rotation and revolution of the earth, solar ultraviolet radiation intensity varies in diurnal and annual periodic.

由于地球自转和公转的原因，太阳紫外线辐射强度呈现出以一年和一天为周期的规律性变化。

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The influence of all the factors affecting solar ultraviolet radiation should be considered comprehensively as analysing the variation trends of solar ult...

在分析太阳紫外辐射的变化趋势时，应当全面考虑各个因子的影响。

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Avoid prolonged exposure under sunlight. Loose clothing, suitable hats and UV-absorbing sunglasses can reduce the chance of sunburn by solar ultraviolet radiation.

避免长时间在阳光下曝晒，以免受太阳紫外线晒伤。应穿上松身衣服以及配戴适当帽子和能吸收紫外线的太阳眼镜。

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Because of abundant solar ultraviolet radiation at the surface, organic molecules might not be preserved as well as clay minerals.

CNN: Have a drink on Mars

The rooms' outer walls are each filled with 250lbs of insulating polyethylene to protect astronauts during solar flares and damaging ultraviolet radiation.

BBC: A space of one's own