Compared with the real edge generated when parallel beam illuminates an object, the virtual edge between bright and dark areas in the phenomenon of total reflection is more complex.

和平行光照射遮光物体产生的实边缘相比，全反射现象中半明半暗视场的分界线处的虚边缘情况更为复杂。

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Clicking buttons on the edge of the device turns the virtual pages.

按一按阅读器边上的小按钮就可以翻页了，尽管只是虚拟的。

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Virtual instrument is a cutting-edge technology of the computer technology and modern electron measurement technology, which is used in instruments.

虚拟仪器是计算机技术与现代电子测量技术在仪器应用上的前沿技术。

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The World's Newsroom is a melting pot for the best journalism in the world, using five custom-built studios with new sets and fresh creative graphics and cutting-edge cameras with virtual reality and 3D capabilities to create news that's immersive, dynamic, and more engaging than ever.

BBC: The World's Newsroom: An introduction

Gamers cannot customise consoles, but they can, and do, upgrade their PCs regularly with faster processors, graphics cards, extra memory, and anything else that will give them an edge over their opponents on the virtual field of honour.

ECONOMIST: Are video-gamers heading for the big money?

To get an edge many players turn to auction sites like Ebay to buy virtual weapons and such to insert into their game.

FORBES: Holy Cybersuit!