安全信息系统是一个动态的系统工程。

Safety information system is a dynamic system project.

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工程建设安全信息管理是施工企业安全管理的重要内容。

Engineering construction security information management is the important content of the security management of building-construction corporations.

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工程建设安全信息管理是施工企业安全管理的重要内容。

Engineering construction security information management is the important content of the security management of building-construction corporations.

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