窗口是在客户端时钟和服务器时钟之间所允许的最大偏差。
The window is the maximum allowable drift between the client clock and the server clock.
从消除信号阻塞到进程执行下一个指令之间，必然会有时钟周期间隙，任何在此时间窗口发生的信号都会丢掉。
There has to be some gap of clock cycles between the unblocking of signals and the next instruction carried by the process, and any occurrence of a signal in this window of time is lost.
第二天，当程序员用终端模拟窗口再次打开应用服务器和数据库服务器时，她向下看了一眼Windows任务栏中的时钟。
Later that day, when she had terminal emulation Windows opened against the application server and database server, the programmer looked down at the clock on the Windows taskbar.
类似地，如果运行清单4中的runclock3. sh脚本，并在运行脚本的终端窗口中按下Ctrl - c，脚本会立即终止，但是没有关闭时钟。
Similarly, if you run the runclock3.sh script of Listing 4, and press Ctrl-c in the terminal window where the script is running, the script will immediately terminate without shutting down the clock.
事实上，如果您拖动另一个窗口让它与时钟的一部分重叠，时钟被重叠的部分仍然会保持不变。
In fact, if you drag another window over part of it, that part of the clock won't even redraw.
例如，一个繁忙中的程序时常在它的主窗口上显示沙漏时钟，以给用户一个你应当等待的可视化提示。
For example, a busy application would often display a sand clock over its main window, to give the user a visual hint that they should wait.
例如，一个繁忙中的程序时常在它的主窗口上显示沙漏时钟，以给用户一个你应当等待的可视化提示。
For example, a busy application would often display a sand clock over its main window, to give the user a visual hint that they should wait.
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