Ozone provides a natural protective filter against harmful ultra-violet rays from the sun, which can cause sunburn, cataracts and skin cancer as well as damage vegetation.

臭氧提供天然的保护，防止太阳的有害紫外线的侵害，这种紫外线会导致晒斑，白内障，皮肤癌以及危害植物。

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The exterior skin is a prefabricated metal that allows natural light to filter into the building.

建筑表面采用预制的金属，可以过滤进入建筑的自然光。

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Clouds and pollution don't filter out UV rays, and they can give a false sense of protection. This "invisible sun" can cause unexpected sunburn and skin damage.

云和空气污染并不能滤掉紫外线，却能给人带来被保护的幻觉。“看不见的太阳”能引致意外晒伤和皮肤伤害。

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Cooler still is the method the arm deals with waste heat and steam: just like a regular arm, it's allowed to filter up through a permeable skin, producing "sweat" -- the same amount of perspiration you'd get on a warm summer day, according to the team.

ENGADGET: Rocket-powered mechanical arm might boost prosthetic tech

Apparently, this new filter adds the ability to whiten teeth, widen eyes, soften skin and even overlay a rainy day window or magazine-like layouts to shots.

ENGADGET

It acts as a sunlight filter, shielding life on Earth from harmful ultraviolet rays that put humans at greater risk of skin cancer and cataracts and harm marine life, the agency said.

CNN: Ozone hole grows in 2008