Switching to an alternate branch, examining file history, and even committing changes are all local operations.

切换分支，查看文件历史甚至是提交修改都是本地操作。

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The VFS provides a switching layer between the SCI and the file systems supported by the kernel (see Figure 4).

vfs在sci和内核所支持的文件系统之间提供了一个交换层(请参看图4)。

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If your browser supports alternate style sheet switching, you can even view this master file, and switch between the three different versions by alternating between style sheets.

如果你的浏览器支持多个样式表的切换，你甚至可以靠它在多个版本的导航栏之间自由切换。

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