For every operation you can compare to the same time window yesterday and a week ago so you can follow the behavior as your application changes.

你可以和昨天或者一周前的同一时间窗口内的操作进行对比，从中可以观察到应用程序的改进过程。

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This article focuses on the specification of the maintenance policy (which controls the behavior) and the maintenance window (which defines when the operation may take place).

本文将重点讨论维护策略(控制行为)和维护窗口(定义操作在何时发生)。

youdao

Because a portion of this tutorial deals with graphical elements of the Emacs operation in the X Window System environment, you should also have an X server up and running.

因为本教程中的部分内容研究了对X窗口系统环境中Emacs图形元素的操作，所以您应该拥有一台正常运行的X服务器。

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The first investigation of its kind for the FBI, "Operation Card Shop, " offered investigators a window into how alleged thieves communicate and interact on similar sites that have proliferated on the Internet.

WSJ: Arrests Made in Massive Online Sting Operation

"That operation ... always leads to finding other things, whether it's floor issues, window issues, (air conditioning) issues, whatever the case might be, " he said.

CNN: Fed-up officer says 'enough,' starts senior outreach