The session layer provides the session services described earlier.

会话层提供此前描述的会话服务。

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Session services for the reliable communication and transfers between a client and a server.

会话服务，用于客户端和服务器之间的可靠通信和传输。

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TCP port 139 is used only for the session services, which are file transfer and message passing.

TCP 端口 139 仅用于会话服务，即文件传输和消息解析。

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Ms Williams asked the first minister, in light of these figures, how he could justify his comment in a recent question session that Wales' ambulance services "are making good progress".

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Kay, who resigned last week as leader of the Iraq Survey Group searching for banned weapons, appeared before the Armed Services Committee after a closed-door session Wednesday morning with the Senate Intelligence Committee.

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