back-up system

BlackBerry users cursed their devices, which stopped working because of problems at servers for which a back-up system failed to work.

黑莓用户最近对其运营商骂声不断，这主要是因为手机服务器的备份系统不工作而使手机无法正常工作。

Construction and Study on Power Data Back-up System

电力数据备份系统的建设与研究

Favourable social and technical environment and social back-up system are the social basis for the normal development of productive forces of modern society.

良好的社会技术环境和社会支持体系，是现代生产力正常发展的社会基础。

The Technical Back-up System of Budget Management in Commercial Banks

商业银行预算管理技术支持体系研究

To establish a safe back-up system of double service unit for hospital

建设安全可靠的医院双服务器备份系统

If system breakdowns or failures would result in the permanent loss of records, a back-up system should be provided.

如果计算机的故障或失效会导致记录的永久丢失，则应当提供备份系统。

This is a back-up system for world agriculture.

这是全球农业的储备系统.

He said he was lucky the airport had a back-up system of its own generators& otherwise he would have to try to land in total darkness.

他说，幸运的是，机场自己有后备的发电设备。否则，他得设法在黑暗里降落。