为使用方便，我们定义了一个关键字同义词，它显示客户名称，但是仅存储客户编号。

For ease of use, we define a keyword synonym that displays the customer name, but stores only the number.

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对客户来说，这意味着更加方便，快速，并且能在任何时候让客户使用服务。

For customers, that move means greater convenience, faster service, and the ability to access Geico services at any hour.

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因此，必须使用于每个版本的 J2EE 客户和服务器组件保持兼容。 这可以通过使用适当的封装以及运行时检查很方便地得以实现，如下所述。

Therefore, match J2EE client and server components to be used for each version; this is facilitated by proper packaging and run time checks, which are described in the following sections.

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