On the control node, start your default X Window System session.

在控制节点上，请启动默认的 X 窗口系统会话。

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The first line will pop up a message on the control nodes' display (if X Window System is active), letting the user know that the laptop is inactive and needs to be powered down.

第一行将在控制节点的界面上弹出消息（如果 X Window System 处于活动状态），从而让用户知道笔记本处于非活动状态并且需要关闭。

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Demonstration the prevent nip function and control door and window, syllabify and clarity to demonstrate the control system.

通过对防夹功能和控制车门车窗的演示，清晰地和有调理地将各项功能演示清楚。

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