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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Compose the Main diagram (or other default diagram) of each top-level Package to depict.

组成每一个顶层包的主图(或者其他的默认图)用来描述。

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