In the intervening years, researchers have developed methods for making larger quantities of the material, and now they're learning how to use it to make devices.

近年，研究者们开发了各种制备大量石墨烯的方法，现在他们正在学习如何将这新型材料做成仪器。

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New and powerful digital devices capable of supporting learning and instruction become available almost on a daily basis.

几乎每天都要用到这些功能强大的新型数字教学设备。

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More recently, in articles about e-learning, short blocks of time during which mini-lessons on mobile, wireless devices could be used have been referred to as "Stolen Moments".

最近几年，在有关数位学习的文献中，这种可以让我们用手机或无线上网装置做短暂学习的零碎时间被称为“偷来的时间”。

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If you haven't already, check out the videos above to see the learning devices in action.

ENGADGET: LeapFrog LeapPad 2 and Leapster GS Explorer hands-on (video)

The galleries do offer more learning devices, but they generally avoid patronizing visitors.

WSJ: Graham Beal | Where There's a Mill, There's a Way | Cultural Conversation by Judith H. Dobrzynski

Every day, we are exposed to stories of isolated programs or financially privileged schools that provide students with tablets as learning devices.

FORBES: Tablets And Education: Why Innovative Hardware Is Not Enough