其它方法使用中央认证中心来发放证书，这些证书保证了网络中从一点到另一点的安全通信。
Other approaches use a central certificate authority to issue certificates that guarantee secure communication from one point to another within a network.
中央图书馆结合行政中心，通过参数化节能设计，拥有良好的自然通风及采光，达到LEED白金认证。
The central library combining administrative center, through the parameterized energy saving design, with good natural ventilation and lighting, to achieve LEED platinum certification.
该国缺乏一个中央人口统计处或一个身份认证系统来将管理数据统一起来。
The nation lacks a central population register or an identity-card system that would allow administrative data to be linked up.
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