In principle, it would be possible to establish a virtual copy of a genuine sound field indistinguishable from the real sound.

As subsequent updates are made to the data, the virtual copy is materialized.

In some cases, hardware support for shadow copy backups means that actually saving the virtual copies is unnecessary.

In the electronic "virtual" copy, it is a simple matter to duplicate material at the touch of a button.

Both virtual and physical copies of material are available to students through the joint service.

The Bronco began as a basic box on high wheels, a virtual copy of the old International Scout.

Anna Nicole Smith recorded a virtual copy of the Monroe version in 1997.

News of this sabotage provoked sharp resonance between the gray, the red, and all their virtual copies.

In the United States, virtual copies of the car were on sale on the auction website eBay for $250.

He also came upon the dying virtual copy of his mother, Katherine, at the same time she was dying of cancer in the real world.