There are no widely used Ajax standards for putting a model-view-controller in the browser or using a dependency graph to track changes.

没有一种被广泛采用的Ajax标准可以将模型-视图-控制器放入浏览器中或者使用依赖图跟踪变化。

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Then you track that point relative to the controller, calculating its velocity as it changes position.

然后，相对与控制器跟踪该点，通过改变位置来计算其速度。

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The results show that the designed robust tracking controller can track the set-value effectively and the design method is effective.

结果表明，所设计的鲁棒跟踪控制器能有效的跟踪给定，所提出的设计方法是有效的。

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The Wii U controller contains the same motion tracking hardware as a Nintendo Wiimote, which means the system can track its relative position at all times, and update the controller screen depending on its orientation.

FORBES: Hands On With The Nintendo Wii U

In "Captain Falcon's Twister Race, " an F-Zero shout out, you hold the GamePad vertically, viewing the action top-down while twisting the controller left or right to guide a racer along a flashing track.

CNN: Nintendo Wii U review: A tale of two screens

Although less than two minutes of it was shown, with No Doubt's Hella Good track thumping in the background, it illustrated the various new markets that Microsoft hope its new controller will expand into.

BBC: Microsoft unveils Xbox 'Kinect' motion controller