If you're using X-Windows, yet another smart way to keep track of the current folder is to display the folder name on the title bar of the xterm as you work your way across multiple folders.
如果使用x - Windows，另一个跟踪当前文件夹的好方法是，在跨多个文件夹工作时，在xterm标题栏上显示文件夹名。
It was smart enough to say, since we have four y-values, we should need four x-values, and I'll choose the integers 0, 1, 2, 3 as those values.
所以说，因为我们有4个y值，所以我们需要4个x值，所以我会从0，1，2，3这几个整形中3,进行选择。
The signal transmitted methods have many kinds in smart-house control system, using X-10 protocol transmitting signal in power-line carrier wave application is most advanced and practicality method.
在智能家居控制系统中有很多种信号传输方式，在电力线载波方式中应用X-10协议进行信号传输是最先进也是最实用的一种。
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