For situations where you just need to mutate state as part of the execution of some discrete task, this is a simple way to accomplish that.

对于仅需要改变状态并将其作为执行离散任务的一部分时，这是完成任务的简单方法。

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In chapter one, the background and the method of the study for discrete problem, and main task of this paper are introduced.

第一章介绍了离散问题的研究背景、主要研究方法及本文的工作。

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The principle of discrete-system simulation was firstly introduced, and the method of the simulating procedure was discussed in details, which were the foundations of task.

本文首先叙述了离散事件系统的仿真原理，详细论述了离散事件系统的仿真策略，为单片机系统仿真提供理论基础。

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Traditional companies tend to view products and services as the basis of competition and a task as a discrete event.

FORBES: Time trumps Money in Innovation

As for effectiveness, I do think limiting the size of my inbox has been helpful in forcing me to procrastinate a little less, organize my digital life and treat each task as a series of discrete steps rather than a vague, daunting undertaking.

FORBES: How Inbox Zero Became Inbox 50: The Evolution of a Resolution