A handheld pointer device provides radiation with a directional characteristic relative to its main axis.

一种手持式指向设备，提供相对于其主轴具有方向特征的辐射。

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Another alternative to the mouse as a pointing device is to use a gaze-tracking camera, which works out where you are looking and moves an on-screen pointer accordingly.

另外一种鼠标替换物是视线跟踪系统，它能判断出你的视线移动的位置并相应地调整屏幕光标移动的位置。

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We can use an indicator with a pointer or a continuous recording device.

我们可以使用有指南针的指示器，或是连续记录的装置。

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A computer mouse is the device that moves the pointer,or cursor, on a computer screen.

VOA: special.2010.03.28

Using a pointer device you can pick any place on a traditional-looking globe and the screen display below spews out facts and figures about the locale.

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