I have used ~ as a placeholder for project top-level package.

我使用了~作为项目顶级程序包的占位符。

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An early draft of our top-level package structure resembled Figure 4.

我们的顶层的包结构的一个最初草稿就象图4。

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In addition, you can package use cases into a top-level package that can be characterized using the stereotype.

除此之外，您能够将这些用例打包到一个顶层包中，并且使用模板对其进行刻画。

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