通过升级一些关键系统实用程序、安装新的2.4内核，并在每个文件系统上输入单条tune2 fs命令，就可以把现有的ext2服务器转换成日志记录ext3系统。

By upgrading a few key system utilities, installing a modern 2.4 kernel and typing in a single tune2fs command per filesystem, you can convert your existing ext2 servers into journaling ext3 systems.

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没有行李：客人可能没有结帐就离开(跑单)或者前台忘记将其离店房态输入系统。

No luggage: probably the guest left without settling the bill (skipper) or the Front Desk Agent forgot to check out the room in the system.

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分析了单饱和输入下控制系统的相空间分布规律并给出了具体的饱和输入下非线性控制系统的空间结构。

The phase space of control systems with saturated input is analyzed and the space structure of control systems with saturated input is presented.

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