Tap your finger to create a spark, drag one finger to draw a line of electricity, two to play an arpeggio and more than two for more complex arpeggios.

手指触及屏幕可以制造火光，手指拖拽可以画一条闪电，两指可以弹琶音，多指可以演奏复杂的琶音。

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The two day forum sought to find a way to turn the tap on and keep it on.

两天的论坛将找到一个开启阀门并使其保持畅通的方法。

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Carry alcohol gels if you can't get to a tap and use them every hour or two.

如果你不能每1 - 2小时到水龙头洗手，你就要携带乙醇凝胶。

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You can also double tap with one finger to return to the Start Screen, and double tap with two fingers to show the desktop.

ENGADGET: Logitech outs two wireless mice and an external trackpad, all optimized for Windows 8

Taking charge two decades ago, Madhukar sought to tap wider markets.

FORBES: BY ANURADHA RAGHUNATHAN

Click on this link or watch this video to learn more about the two-finger tap and how it works.

FORBES: Connect