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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While the EPR relies on active pumping to maintain reactor cooling, an Areva spokesman told Technology Review yesterday that it has extra backup generators for added redundancy.

EPR依靠主动式水泵抽运以冷却反应堆，Areva发言人昨天对Technology Review记者称，设计有额外的备用发电机组以满足多余的需求。

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Even better, if you use 4 or more memory CARDS at a time, you can set them up as a RAID 5 array for extra space and redundancy.

改善，如果您每次使用4个或更多存储卡，您能设置他们作为额外空间和多余的一个RAID 5列阵。

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David Hart, the general secretary of the National Association of Head Teachers (NAHT) welcomed the extra funding, but said redundancy notices were already going out in places like Bristol.

BBC: Schools face cuts despite cash

But the overall air system's safety is built on redundancy, and taking away the controller's extra set of eyes is like removing stop signs or traffic lights from city intersections and forcing drivers to be more vigilant and cautious, says Paul Rinaldi, president of the National Air Traffic Controllers Association.

NPR: FAA To Close 149 Air Traffic Towers Under Cuts