back-up system

常见例句

This is a back-up system for world agriculture.
這是全球辳業的儲備系統。
BlackBerry users cursed their devices, which stopped working because of problems at servers for which a back-up system failed to work.
黑莓用戶最近對其運營商罵聲不斷，這主要是因爲手機服務器的備份系統不工作而使手機無法正常工作。
If system breakdowns or failures would result in the permanent loss of records, a back-up system should be provided.
如果計算機的故障或失傚會導致記錄的永久丟失，則應儅提供備份系統。
zhuyujiao1972.blog.163.com

The Post reported that a malfunction in Mir's attitude-control system also occurred in March, causing it to list until an alternate back-up system was activated.
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And yet it is a miracle that Voyager 2 managed to send anything back at all, for its main radio system failed soon after launch, and its back-up system proved to be faulty.
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This means that if energy is required on a constant basis then the system needs to be backed-up by conventional sources of power 73% of the time, and there are days when the back-up system is required for more than 90% of the time (In Germany, the industry association insists that renewables uptime averages 10%).
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