During the design phase, architectural methods and components are selected in areas where change is expected and flexibility is required in the functional requirements.

在设计阶段，要在预期会发生变更的领域选择体系结构方法和组件，而且功能需求中要求实现灵活性。

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The disadvantage of this flexibility is a loss in performance, because the action phase will be invoked before the other portlets on a page start their rendering.

此灵活性的缺点是存在性能损失，因为要在页面上的其他Portlet启动其呈现前调用操作阶段。

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By contrast, the Tesla Roadster USES just one gear-such is the flexibility of its three-phase induction motor.

相反地，特斯拉跑车公司只需要动用一个传动设备——那就是三相诱导式发动机的灵活性。

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