Should an undershoot occur in a battery backed system during a power down, data can be lost immediately.

如果一冲发生在电池备份系统断电时，数据可能会丢失立即。

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The battery, which, if completed, would have been almost a redoubt, was ranged behind a very low garden wall, backed up with a coating of bags of sand and a large slope of earth.

那队炮兵的工事如果完成，就可能成为大害。 炮位设在一道极矮的园墙后面，百忙中加上了一层沙袋和一道宽土堤。

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For single drives this could greatly reduce performance but with a properly battery-backed RAID card with cache, the impact may not be as severe.

对单个磁盘而言，这么做肯定会大幅降低磁盘性能，但对于正确配置的含有BBU的磁盘阵列而言，性能下降得微乎其微。

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Most of the government-backed battery factories are operating well below their production capacity.

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Wikets, backed by Battery Ventures and Andreessen Horowitz, takes the affiliate fees it gets for people purchasing via its links and turns those into rewards for top recommenders.

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Boeing has backed the battery used in the Dreamliner after Japan Airlines and All Nippon Airways said they changed a number of them in the past few months.

BBC: Dreamliner: Boeing defends 787 batteries