Windows 7中的系统和安全(System and Security)的子控制面板部分可以充当备份数据 的交换中心，用于防止安全汤洞，维护系统。
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信息网络系统和安全 Information Networking Systems and Security
分布式系统和安全 Distributed Systems and Security
互联网系统和安全 Internet Systems and Security
系统性能和安全优化 System Performance and Security
智能系统和信息安全 Intelligent system and information security
应用和系统开发安全 Applications & Systems Development Security
通信网络和系统安全 Communication network and system security
网络和系统安全 Network and System Security
软件和系统安全 Software & Systems Security
系统、电气系统和安全装置等部分组成。
System, electrical system and safety devices and other components.
检查和维修消防系统、报警系统和安全系统。
Check and maintain firefighting system, alarm system and security system.
在此设计上，进入景区后，我们应有明确的方位指示系统和安全指示系统。
On this design, after getting into view area, we should have explicit system and safety of the directions designation to indicate system.
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