The protective relaying and fault recorder information processing system is composed of a master station system, communication network and slave station system.

电网继电保护及故障信息管理系统由主站系统、通信网络和子站系统三部分组成。

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Single bus technology is a master-slave network with data communication by both a data line and a return line.

单总线技术是使用一根数据线与一根返回线实现数据通信的主从式网络。

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While something is wrong with the master device, the slave device can replace it quickly. Using standby technology will make service of communication network do not halt in a long time.

当主设备出现故障时，从设备迅速地接替它进行工作，这样就可以确保网络通讯不出现长时间的中断。

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But these letters, she says, are more than a family's chronicle of survival: They document a vast network of Nazi slave labor camps, about which very little has been written even today.

NPR: Letters Offer Glimpse of Life in Nazi Labor Camps