Data processing has traditionally relied primarily on a connection-based, two-tier model.

以前，数据处理主要依赖于基于连接的双层模型。

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Using a two-tier model meant we could continue running Red Hat Linux 8.0 on our main Portal server plus gain the benefits of using a directory service for authentication.

使用双层模型使我们能继续在我们的主Portal服务器上运行Red Hat Linux 8.0，还得到了使用目录服务进行认证的好处。

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Its awkward title refers to Mr Kahneman’s two-tier model of cognition: “System 1” is quick, intuitive and responsible for the quirks and mistakes described above (and many others).

这本书不甚文艺的书名，实际上是指卡尼曼先生的双重认知模型：“一号系统”是快速的直觉思维，是前面描述的（以及其他更多的）思维错误的根源。

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Others point to Ireland's two-tier model: an ombudsman who tries to resolve complaints by members of the public through free-of-charge conciliation with the newspaper in question, and a more formal press council that upholds a code of conduct.

ECONOMIST: Politics and the press: Press ganged | The