对大型机的持续连接是必要条件。

Constant connection to the mainframe is required.

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Connect_Duration：此会话建立的连接的持续时间。

Connect_Duration: Time since the connect is established for that session.

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Connect_Duration：此会话建立的连接的持续时间。

Connect_Duration: Time since the connect is established for that session.

youdao