During APC system maintenance, several software components affect how the Element Management system (EMS) reports AP status.

在apc系统维护期间，有几个软件组件会影响元素管理系统(ems)将如何报告ap状态。

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The method has an advantage of being simple and easy to realize for the optimization and APC control of a complex process system like a rectification.

该方法为精馏等化工装置的复杂控制系统提供了一种新的优化和先进控制方案。

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APC and Wincache also have mechanisms for caching the results of file status checks made by PHP, so repeated file-system checks are not needed.

APC和Wincache还有用于缓存PHP进行的文件状态检查结果的机制，因此无需进行反复的文件系统检查。

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