Those former installations are now used as museum, now and then.

These installations would have been used to locate the source of enemy radio transmissions.

This installation had been created for him and the others, and would not be used until he and they began to operate out of them.

At present, this installation is used for training.

After the transfer the installation was used for a time as a civilian airport.

This installation might have been used to control the sun in other ways.

Museum vehicles and installations are often used for film and television productions.

Nothing to signal that the installation was being used.

The installation has also been used as a setting for collaborative theater performances involving singing and dance.

Copy protection is handled by an online user account that keeps track of how many installations have been used.