System administrators find component diagrams useful because they get an early view of the logical software components that will be running on their systems.
系统管理员发现组件图是有用的，因为他们可以获得将运行于他们系统上的逻辑软件组件的早期视图。
You'll find the source code of this component in the companion code.
你可以在本文所附的代码中找到这个组件的源代码。
If you are fortunate enough to find a component or framework that does exactly what you need, use it.
如果您很幸运地找到了一种能满足您需要的组件或框架，那么就请使用它吧。
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