Open System Authentication 开放系统认证
system authentication engineer 系统认证工程师
Closed System Authentication 封闭系统认证
Using Operating System Authentication 使用操作系统验证
operating system authentication 操作系统认证 ; 操作系统身份验证
quality system authentication 质量体系认证
management system authentication 管理体系认证
industry quality system authentication 军工质量体系认证
iso 9000 quality system authentication iso质量体系认证
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