The trouble is that desktop and laptop systems are likely to be powered down at these times.
问题在于，台式机和笔记本系统很可能在这些时间是关闭的。
If you run Linux (or most other UNIXes) on a desktop or laptop computer, that system may be powered down from time to time.
如果在台式机或笔记本电脑中运行Linux(或大多数其他UNIX系统)，那么可能会经常关闭系统。
Instead, the drives automatically generate a new security key when they start up, then wipe that key as soon as they are powered down or disconnected.
取而代之的，在驱动器启动时自动产生一个新的安全密钥，而驱动器断电或终止链接时密钥就会被删除。
Kevin Murrell, a trustee of the UK's national museum of computing, recently switched on a 456 Megabyte hard drive that had been powered down since the early 1980s.
凯文·穆瑞尔(KevinMurrell)是英国国家计算博物馆的董事，最近启用了一块456兆字节的硬盘，这块硬盘自1980年代初其断电之后就从未使用过。
For this reason, Anacron is best employed on systems that really need it, such as laptops and desktops that are usually powered down overnight, when cron jobs typically run.
鉴于这个原因，最好将Anacron应用于真正需要它的系统，比如经常在夜晚关机的笔记本电脑和台式机，而cron作业通常在夜晚运行。
An apparatus and method are provided for preventing a current leakage or direct current when a low voltage domain is powered down.
本发明提供一种用于在低电压域断电时防止电流泄漏或直流电流的设备和方法。
Even with all this change in the air, preparing a eulogy for traditional PCs is silly: it's going to be many, many years before the last one is powered down for the final time.
尽管上述变化正在发生，现在就为PC准备颂歌却是轻率而愚蠢的行为：毕竟要过很多很多年，才能看到最后一台PC断电长眠。
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XWindowSystem 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。
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XWindowSystem 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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