To reduce system startup times and general overhead, use non-persistent session beans rather than entity beans (which automatically maintain state information) whenever possible.

为了缩短系统启动时间并降低整体负荷，应尽可能使用非持久性会话 bean，而不应使用实体 bean（将自动维护状态信息）。

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When pages are served by PHP, this process is easy; you can check a session variable, or other persistent indicator.

如果页面是由PHP实现的，这一过程将会非常简单，您可以检查一个会话变量或者其它的永久指示符。

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Keep persistent information in a session.

在一个会话中保持持续信息。

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Persistent rain meant no play was possible in the morning session but they got underway after an early lunch.

BBC: Clarke leads Warwickshire revival

Plenary session discussions will focus primarily on the impact of the economic crisis on education and address many of the persistent problems that limit access to education for large sections of society.

UNESCO: MEDIA SERVICES