这些动物早已拥有四色觉，但关键的区别是，他们的第四种颜色位于高频的紫外线区域，在人类可视范围之外。
Those creatures have long had four-color vision, but a key difference is that their fourth type of color detector is in the high-frequency ultraviolet range, beyond where humans can see.
在来自星云中心蓝巨星紫外线辐射的压力下，这些由气体和尘埃组成的恒星形成区域尖端的电离氢分子将不复存在。
Ionized molecular hydrogen can be seen evaporating from the tips of these star-forming columns of gas and dust, under pressure of ultraviolet light from the nebula's central blue giant stars.
Kirby说，紫外线能用来确定油污被冲到某一特定区域的时间。
The ultraviolet light could make it possible to determine how long ago oil had washed up in a given region, Kirby said.
紫外线所照射到的区域，该区域的聚合物便会凝固，并将陶浆中的颗粒粘合在一起。
Wherever the light falls on the polymer it causes it to solidify, binding the particles in the slurry together.
他们认为这符合情理，因为这些鳟鱼生活在世界上臭氧层空洞最大的区域附近，这意味着它们接触到了更强的紫外线。
Makes sense, they say, because these trout live near the world's biggest hole in the ozone layer-meaning more exposure to UV rays.
在等离子弧区域的水银和其它的填充物会发出可见光和紫外线。
The mercury and any other fill materials in the arc emit visible and UV light.
在等离子弧区域的水银和其它的填充物会发出可见光和紫外线。
The mercury and any other fill materials in the arc emit visible and UV light.
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