Repair worn parts of metal products by welding on extra layers.

通过焊接额外层，修复金属制品的磨损零件。

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Add extra layers of cardboard to the corners of your box and use plenty of Duct tape to hold it tight.

在盒子的角落处添加几层硬纸板，用大量胶带缠牢。

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By adding extra layers of redundancy, the probability of such a catastrophic failure can — in theory at least — be made too small to worry about.

在增加额外的冗余层后，理论上，这种灾难性的系统失效的事故发生的可能性就非常非常小了。

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And those who have deployed it--if they're smart--generally do so only after adding extra layers of security.

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At the moment Jenny plans to bring in additional musicians to add extra layers to her poignant sound.

BBC: BBC Introducing: Jenny Bishop

Pennsylvania has ordered drillers to use extra layers of pipe at those depths.

FORBES: Energy