Perhaps the best example of this is photo viewing: you flip between pictures by simply flicking your finger across the screen, and you double-tap to zoom in and out, just as you would on an iPhone.

也许最好的例子就是照片浏览了：你可以简单地在屏幕上划动手指切换图片，并且双击来缩放，和使用iPhone一样。

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We have developed a method that uses a magnetic double barrier tunnel junction to study spin flip scattering in nanometer sized spacer layers near the ballistic limit.

文章作者提出了一种使用双势垒磁性隧道结来研究纳米尺度结构中弹道区域的自旋翻转散射效应的新方法。

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To erase redundancy of the clock, improve clock utilization rate and reduce power dissipation, this paper proposes the logic design of low power flip-flop based on double edge trigger.

从消除时钟冗余，提高时钟利用率以达到降低功耗的思想出发，提出基于双边沿触发的触发器的逻辑设计。

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The double McTwist 1260 sees White flip twice while completing three and-a-half twists.

BBC: Shaun White wins the half-pipe at Cypress Mountain

Apple would do a deal as a double-reverse with a flip.

FORBES: Why Apple Should Buy Nokia

The new juice pack air allows iPhone 5 users to do more with their device on one charge, packing 1700 mAh to double the battery life of the device with the simple flip of a switch.

ENGADGET: Mophie Juice Pack Air brings an extra 1,700 mAh to iPhone 5 for $100