为了调查由此产生的影响，克莱门茨和其研究小组选取了十几条山间溪流，将遮盖板放置在溪流的某一段以阻挡紫外线对溪床的照射。

To investigate this effect, Clements and his team placed screens over small segments of a dozen mountain streams to block ultraviolet light, and left them there for 60 days.

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肯德基门粉状涂层经过高温烘烤，变成效果各异、美观耐用、防化学侵蚀及紫外线的最终涂层。

KFC door after high temperature baking powder coatings into different effects, beautiful and durable, anti-chemical corrosion and UV-final coating.

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