If there is damage, you can buy another in the distributor. The original damaged layer can make a certain discount.

如有损坏，可到经销商处购买，带损坏原片会给你带来优惠。

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The results show that the damaged layer of silicon cut by WEDM mainly appears massive impurity elements, remelted and elastic distortion with a high density dislocation.

结果表明：电火花线切割单晶硅损伤层主要由杂质元素重污染层、重熔层和含有高密度位错的弹性畸变层组成；

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The damaged ozone layer can't start to heal until there is a significant reduction in chlorofluorocarbons, like Freon, that are still widely used in commerce and industry.

在像氟利昂这样仍然在商业和工业中被广泛使用的氯氟碳物质显著减少之前，被损害的臭氧层是不能开始恢复的。

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The result is that any coating, such as an antibacterial layer, would be "self-repairing" after small amounts of damage, as the molecular chains just below the damaged layer re-cover the surface.

BBC: Coating heals itself after damage

Venezuelan environmentalist Erik Quiroga believes the storms could help repair the damaged ozone layer and is campaigning for the entire ecosystem that produces the storms to be recognized as a Unesco World Heritage site.

BBC: In Venezuela, nature��s most electrifying lightning show

During the dinosaurs' time on Earth, "the atmosphere became charged with methane, which finally damaged the ozone layer and brought about great changes in the vegetation, " it added.

BBC: Ill wind 'killed dinosaurs'