When using KVO in a category implementation, it is recommended that a custom associated-object be used as an observer, rather than the object observing itself.
当在一个category的实现中使用KVO时，建议用一个自定义的关联对象而不是该对象本身作观察者。
When using KVO in a category implementation, it is recommended that a custom associated-object be used as an observer, rather than the object observing itself.
当在一个category的实现中使用KVO时，建议用一个自定义的关联对象而不是该对象本身作观察者。
The client service is agnostic to how the service is implemented — whether rules or some other implementation technology — and to which rule category is used, when there is a choice.
客户机服务不知道其所使用的服务是如何实现的——是否采用规则或其他实现技术——也不知道规则所属的规则类别、何时存在选择。
There is a convention in Objective-C to provide private methods on a class by defining a category within the implementation file; this could be a relatively simple addition by using chained templates.
在Objective - C中有一个惯例通过在实现文件中定义一个类别为一个类提供了私有的方法；通过使用链式模版这将是相关简单的附加物。
Ajax makes this implementation even better: By loading only one category when a user expands a view, you can save a lot of overhead and provide a benefit to your users.
Ajax能进一步优化此实现：在用户展开视图时仅载入一个类别，从而可使您节省大量开销，并使您的用户受益。
The second category are material activities, including "Business Modeling," "Requirements," "Analysis and Design," "Implementation," "Test," and "Deployment."
第二类是材料活动，包括“商业模型”，“需求”，“分析和设计”，“实现”，“测试”，和“部署”。
While an extender provider can provide properties to any component, the implementation typically includes features that make it usable only with a specific category of components.
虽然扩充性提供者可以提供属性给任何元件，这实作基本上包括一些功能，故只能使用于特定分类的元件。
While an extender provider can provide properties to any component, the implementation typically includes features that make it usable only with a specific category of components.
虽然扩充性提供者可以提供属性给任何元件，这实作基本上包括一些功能，故只能使用于特定分类的元件。
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