The -e flag to the echo command tells it to expand C-style escaped characters; in this case, it's going to turn \ t into a TAB character for you.

echo命令的- e标志用来告诉该命令扩展c风格的转义字符，在本示例中，它会把\ t转换为制表符。

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One particular type of navigation well suited to CSS styling is tab-style navigation, shown in Figure 3.

一种适用于css样式的特定导航类型就是选项卡式导航，如图3所示。

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Just as for the main browser menu bar, the applet menu bar is responsive to the mouse, tab-key-style navigation, and hot-key combinations.

applet菜单栏和主浏览器的菜单栏一样，也可以对鼠标、制表符导航、组合热键等等作出响应。

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The Mobile Dock adds serious value and usability to the Vivo Tab, transforming it into a netbook-style productivity device complete with USB port and 7 additional hours of battery life.

FORBES: First Impressions: ASUS Vivo Tab RT