Use instead of tabs when it would be prohibitively expensive to track and display the current location of the user as a state in the navigation control.

通过控制导航条的状态来跟踪和展示用户当前位置很困难，成本很大时，用它来替代标签。

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In the first template validation example, we add more HTML to read that control state and update the display appropriately.

在第一个模板验证例子中，我们添加了更多HTML，来读取控制器状态并适当更新显示。

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Build-in microcomputer unit can display and control the operating mode of exciters, PAs and overall transmitter. Offering state displayed with LED.

l嵌入式微机显控单元可对激励器、功放及整机的工作状态进行控制和显示。LED显示各种状态。

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