Sockeye salmon may use their ultraviolet perception to see food .
红大马哈鱼能利用紫外线的穿透力看见食物。
The system decontaminates urine via membrane filtration and ultraviolet radiation .
这个系统通过膜过滤和紫外线辐射净化尿液。
But birds have an extra cone for seeing violet and ultraviolet light .
但是鸟类有一种特殊的圆锥细胞来看紫罗兰和紫外线。
The climatic gains might thus be worth the ultraviolet losses .
因此,用紫外线造成的损失来换取气候的改善是值得的。
Scorpions glow under ultraviolet light , but scientists do not know why .
蝎子在紫外线的照射下能发光,但是至今科学家还没解开这个谜。
Four treatment plants throughout the country take sewage , filter it through several membranes , and expose it to ultraviolet light to make it safe to drink .
全国四家污水处理厂将污水通过几道膜过滤,然后让其暴露于紫外光之中,成为安全的饮用水。
A new polymer material that can repeatedly heal itself at room temperature when exposed to ultraviolet light presents the tantalizing possibility of products that can repair themselves when damaged .
Black holes gravitationally draw gas and dust into them , accelerating and heating this attracted matter until it emits high-energy radiation , including x-rays and ultraviolet light .
黑洞的引力将气体和尘埃吸进来,并使吸进的物质加速升温,直到释放出高能辐射,包括x射线和紫外光。
Ultraviolet patterns also help certain species of butterflies appear similar to predators , while differentiating themselves to potential mates .
紫外模式还能使某些种类的蝴蝶伪装成捕食者,但同时把自己和未来配偶区别开来。
Ozone in the stratosphere is important because it absorbs some of the sun 's dangerous ultraviolet radiation .