The key to VSC for multi-input nonlinear system is the design of a switch function which should ensure the stabilization of sliding mode.

多输入非线性系统变结构控制器设计的关键之一是寻求切换函数使得滑动模态渐近稳定。

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In pairing mode, press and release the function key once when re-start the headset after switch off, it will connect the phone automatically.

在配对状态下，关闭耳机如再开机时按功能键一下，会自动连上。

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The paper firstly introduces the conception and function model of NGN, and describes the key technology of NGN, Soft Switch.

本文介绍了下一代网络的概念和功能模型，以及其核心技术——软交换技术；

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For example, its Windows 8 Start key provides a quick and easy way to get back to your Start Screen, while the App Switching function key allows you to quickly switch among your open apps.

ENGADGET: Logitech's K810 keyboard pairs with up to three devices, has a button for switching apps in Windows 8