Secure communication is needed to transfer or access data from one Intranet to another, from one Intranet to a closed network, or from one closed network to another.

从一个Intranet到另一个Intranet、从一个Intranet到封闭网络或者从一个封闭网络到另一个封闭网络传输或访问数据将需要安全的通信。

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The highway traffic network construction in China is a developing trend. The highway systems at all levels in a region constitute the relatively closed network systems.

公路路网化是我国交通建设的一个发展趋势，各种不同等级的公路系统在一个区域内构成了一个相对封闭的路网系统。

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One benefit of the dedicated model is that the Web services being monitored can transport sensitive data on an intranet or in a closed network within an enterprise, skipping the grid.

专用模型的优点之一在于，所监视的 Web 服务可以在企业中的 Intranet 上或封闭的网络中传输敏感数据，从而跳过网格。

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"I can't add Facebook posts, of course, because that's a closed network, " he said.

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Even in a closed corporate network, people have to be careful about what they say about whom.

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It is a closed social network in a universe designed to be open.

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