文章介绍了进行网络安全防范所必需的安全策略、系统防护、入侵检测、应急响应体系及备份、灾难恢复策略。

This paper discusses the security strategy, system protection, intrusion detection, emergency responding system and backup, disaster restore strategy essential for network security protection.

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应急无线电示位标在海难救助中发挥着重要作用，年度检测是该终端系统维护的重要工作。

EPIRB is very important for sailing distress assistance. Annual inspection is the main job in system maintenance.

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本文提出的矿山应急救援环境检测子系统主要研究矿山事故现场的环境参数实时检测。

The environment Detecting Subsystem for Mine Emergency Rescue proposed by the dissertation mainly studies the real-time detection of environment parameters.

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