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1·Their active/passive configuration provides full redundancy should one server fail.

它们的主动/被动配置提供了完全冗余，可以支持一台服务器出现故障的情况。

2·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。

3·The survivable system model is put forward based on heterogeneous redundancy on the basis of comparing the active response method and the method based on redundancy.

通过对基于主动响应和基于冗余两种提高系统可生存能力方法的研究分析的基础上，提出了可生存系统的分层冗余结构模型。

4·For database redundancy purpose, CRF (Continuous Roll Forward) Mechanism has been used for data redundancy purpose between the active and standby database server.

为具有数据库冗余，CRF(持续向前滚动)机制被用作活动与待机数据库服务器之间的数据冗余。